Ingredient Glossary · Botanical Actives

Cucumber Extract

Cucumis sativus (Cucumber) Fruit Extract · CAS 89998-01-6 · Kheera ka Arq (کھیرے کا عرق)

Pakistan's most beloved cooling botanical — scientifically validated as a multi-pathway anti-inflammatory, humectant, and antioxidant active. From traditional kheere ki thandak to COX-2 inhibition and idoBR1 discovery: the complete professional and cultural reference for Pakistani formulators.

CAS
89998-01-6
Identifier
1–5%
Typical
Use Level
EU
Permitted
Reg. Status
Scroll
Quick Reference

At a Glance

INCI Name
Cucumis Sativus (Cucumber) Fruit Extract
CAS / EINECS / EC
CAS 89998-01-6 · EC 289-825-9 · CosIng: Skin Conditioning, Antioxidant
Chemical Class
Complex botanical extract — flavonoids, polysaccharides, vitamins, minerals, cucurbitacins, iminosugar idoBR1
Physical Form
Clear to pale yellow liquid · Characteristic fresh cucumber odour · APHA ≤100 · Water-like viscosity
pH Range / Stability
Stable pH 4.5–7.0 · Optimal 5.0–6.5 · Add below 45°C to protect heat-labile ascorbic acid and flavonoids
Solubility
Fully water-soluble · Not compatible with anhydrous oil-only systems · No solubiliser required in aqueous bases
Halal Status
✓ Halal — 100% plant-derived from Cucumis sativus fruit · No animal inputs · No ethanol fermentation at any stage
Bio Shop™ Available Grade
Cosmetic-grade liquid extract · Water-soluble · Clear liquid · Available in 10ml, 30ml, 100ml, 250ml, 1kg
Odour Character
Fresh, green, characteristic cucumber — mild, non-sensitising · Naturally fragrant C6 aldehydes; allows "fragrance-free" labelling per CIR assessment
Recommended Use Level
1–5% standard · Up to 10% in intensive soothing masks · Eye area: 1–3% · After-sun: 3–5% · Toners/mists: 1–5%
EU Cosmetics Status
✓ Permitted — not listed in Annex II, III, IV, V, or VI of EU Reg. 1223/2009. Freely usable across all cosmetic categories
FDA / CIR Status
✓ CIR Expert Panel (2012): Safe in current practices of use · Cucumber GRAS as food (21 CFR 101.44)
Skin Type Suitability
All skin types · Excellent for sensitive, reactive, oily/acne-prone, post-sun, periorbital (eye area) · Non-comedogenic
Urdu / Pakistan Name
Kheera ka Arq (کھیرے کا عرق) — Cucumber Water / Cooling Botanical · Kheera (کھیرے) — common name across Pakistan
Introduction

Kheere ki Thandak — Pakistan's Cooling Botanical

Cucumber Extract occupies a unique position in the world of cosmetic actives: it is simultaneously a rigorously mechanised scientific ingredient and Pakistan's most beloved traditional cooling remedy. Every Pakistani knows kheera (کھیرے) — the cold slices placed over tired eyes before Eid, the chilled cucumber juice (kheere ka arq) rubbed into heat-reddened skin on a July afternoon in Lahore, the cucumber paste applied in village beauty routines that have persisted for centuries. What modern analytical science has done is transform this folk wisdom into precision biochemistry: the flavonoids quercetin, luteolin, and apigenin that inhibit COX-2; the iminosugar idoBR1 isolated for the first time from Cucumis sativus in 2020 that blocks TNF-α and disrupts the hyaluronic acid–CD44 inflammatory signalling axis; the polysaccharide fraction that deposits a hygroscopic moisture-binding film on the stratum corneum. The cultural narrative and the clinical evidence are now inseparable.

For Pakistani formulators, Cucumber Extract solves problems that are specific and urgent. In Lahore's extreme summer heat of 38–45°C, every consumer's skin is under assault from UV radiation, thermal stress, and the inflammatory cascade it triggers — Cucumber Extract's multi-flavonoid anti-inflammatory profile directly dampens this response within 15–30 minutes of leave-on application. In Karachi's coastal climate, where humidity intensifies the post-sun experience and creates chronic under-eye puffiness from heat and disrupted sleep, Cucumber Extract in an eye gel or cooling serum delivers the most culturally resonant and clinically substantiated response available. The ingredient is fully halal, EU-permitted, CIR-approved, DRAP-unrestricted, and non-comedogenic — a regulatory profile as clean as its clear liquid form. Bio Shop™ Pakistan stocks cosmetic-grade extract standardised to appearance, pH, and microbial limits with Certificate of Analysis available per batch.

Bio Shop™ Pakistan — Sourcing Note

Bio Shop™ Pakistan stocks Cucumber Extract at cosmetic grade — clear to pale yellow liquid, fully water-soluble, pH 4.5–6.5, APHA ≤100. Sourced from established international manufacturers with verifiable supply chains and batch-level CoA documentation. Typical use: 1–5% in water-based formulations; add to cool-down phase below 45°C. Suitable for eye gels, toners, face mists, after-sun products, serums, creams, scalp treatments. CoA, SDS, and Halal compatibility documentation available on request. Visit bioshop.pk/products/cucumber-extract for current stock and pricing.

Botanical Identity

Chemical Identification

INCI NameCucumis Sativus (Cucumber) Fruit Extract
CAS Number89998-01-6
EINECS / ECEC 289-825-9 (Cucumis sativus extracts)
Botanical SourceCucumis sativus L. — Cucurbitaceae family; fruit pulp, juice, or whole fruit
Chemical ClassComplex botanical extract — polyphenols, flavonoids, polysaccharides, vitamins, minerals, cucurbitacins
Primary BioactivesQuercetin, luteolin, apigenin, kaempferol (flavonoids) · Cucurbitacins A/B/C · Ascorbic acid · Caffeic acid · Silica · idoBR1 (iminosugar)
MW Range148 g/mol (ascorbic acid) to >100,000 g/mol (high-MW polysaccharides) — complex botanical matrix
Functional Class (CosIng)Skin Conditioning Agent · Antioxidant · Anti-Inflammatory
Extraction SolventWater, water-glycol, or water-glycerin mixture (cosmetic grade); no ethanol in standard halal grades
StandardisationTotal polyphenol content (GAE mg/g), pH, appearance, APHA colour, microbial limits — manufacturer-dependent
pH Range4.5–7.0 (stable); optimal 5.0–6.5; below 4.0 risks polysaccharide hydrolysis; above 7.0 accelerates flavonoid oxidation
Key Novel CompoundidoBR1 — [(2R,3R,4R,5S)-3,4,5-trihydroxypiperidine-2-carboxylic acid]; isolated 2020 (ACS Omega); inhibits TNF-α and sialidase; blocks HA-CD44 inflammatory axis
Urdu / PakistanKheera ka Arq (کھیرے کا عرق) — Cucumber Water / Cooling Botanical · Kheera (کھیرے) · Classical Unani: Bard wa Ratb (cold & moist temperament)
Grade & Quality Profiles

Four Commercial Grades

Cucumber Extract is available in several grades differentiated by extraction method, standardisation level, and solvent system. Understanding grade differences is essential for Pakistani formulators evaluating supplier options. Bio Shop™ Pakistan stocks cosmetic-grade liquid extract — the professional specification with CoA per batch.

Professional Standard · Bio Shop™ Grade
Cosmetic Grade
Standard aqueous or water-glycol extraction · APHA ≤100 · pH 4.5–6.5 · CoA per batch
Primary Spec
Std ✓
Total polyphenol confirmed · Microbial within USP <61> · Heavy metals ≤10 ppm
"The Bio Shop™ stock grade — clear to pale yellow liquid with characteristic fresh cucumber odour. APHA ≤100, pH 4.5–6.5. Compatible with all standard cosmetic preservatives. Full water-soluble. CoA and SDS available per batch. Optimal for all formulation types: toners, serums, gels, creams, shampoos."
Premium · European Standardised
Premium European Grade
Silab / Greentech / Ichimaru · Higher polyphenol standardisation · Stricter heavy metal specs
Polyphenol Assay
>1 mg/g
GAE (gallic acid equivalents) confirmed · Premium clinical data available
"Higher polyphenol standardisation and stricter specifications than standard Chinese cosmetic grade. Required for premium clinical-claims products, EU-market brands, and professional skincare lines. Higher cost but better batch consistency for anti-inflammatory efficacy claims. Suppliers: Silab (France), Greentech (France), Ichimaru Pharcos (Japan)."
Emerging Premium · Enhanced Bioavailability
Fermented Grade
Enzyme-assisted or lactic acid bacterial fermentation · Higher free aglycone content · K-beauty application
Bioavailability Boost
+50%
Free aglycone quercetin vs. glycoside form — deeper skin penetration
"Emerging grade using Lactobacillus fermentation of cucumber juice to convert quercetin-3-glucoside to free quercetin aglycone (lower MW, better stratum corneum penetration). Popular in Korean beauty formulations. Not yet standard in Pakistan supply chain. Higher cost; halal status requires confirmation of bacterial strain and fermentation aids."
⚠ Avoid Without Verification
Compromised / Unknown
Pakistan import risk · Cucumber-scented water · Microbially contaminated · No CoA
Quality Status
Avoid
Turbid appearance · Off-odour (fermented/sour) · pH drift · No polyphenol data
"Common Pakistan import risks: plain water scented with cucumber fragrance (zero polyphenol activity); microbially contaminated extract (no adequate preservation); undeclared dilution (high water content). Detection: turbid/cloudy = microbial; off-odour (fermented, sour) = spoilage; pH outside 4.5–7.0 = degradation. Always request CoA with polyphenol assay."
Dosage Science

Concentration Behaviour

Cucumber Extract exhibits a clear dose-response relationship for anti-inflammatory and antioxidant effects. The clinically studied and commercially validated range is 1–5%, which delivers full multi-pathway benefits within safe and aesthetically acceptable limits. Use levels are not restricted by regulation — the constraint is practical: above 5%, visible colouration (pale yellow-green tinge) may develop in finished products, and additional actives (Allantoin, Niacinamide, Chamomile Extract) typically provide better cost-in-use improvement than simply increasing Cucumber Extract concentration.

0.5–1.0%Light Soothing Contribution
Light polysaccharide moisture film; subtle freshness; mild anti-inflammatory contribution. Suitable for budget-tier toners, micellar waters, cleansing gels where a soothing claim is secondary. Sensory cooling perceived positively in hot weather
1.0–2.0%Measurable Anti-Inflammatory
Visible redness reduction after 30–60 min application; good polysaccharide moisture film; COX-2 inhibition detectable by chromametry. Suitable for standard toners, light serums, cream cleansers. Entry level for clinical-style soothing claims
2.0–3.0%Strong Soothing Action
Strong soothing; COX-2 inhibition evident; substantial polysaccharide film. Suitable for soothing serums, after-sun lotions, sensitive skin creams. Supports clinical anti-inflammatory claims. Ideal for post-sun and post-waxing products targeting Pakistani consumers
3.0–5.0%Maximum Standard Efficacy
Maximum standard anti-inflammatory and antioxidant contribution; full skin-feel benefits; eye-area soothing optimal. Recommended for eye gels (3–5%), intensive after-sun, calming masks, reactive skin serums. Full sensory cooling benefit in Pakistan's summer heat
5.0–10%Specialised — Monitor Colour
Specialised soothing concentrate for professional masks, sheet mask essences, hydrogel patches. No safety concern at this level (CIR confirms no upper safety limit in clinical range). Watch for mild yellow-green tint development in finished products above 5%. Preserve carefully
Not SuitableAnhydrous / Oil-Only Systems
Cucumber Extract is fully water-soluble and has no compatibility with anhydrous bases (body butters, pure oils, lip balm bases). Cannot be incorporated into oil-only formulations without an emulsion or water phase. Not suitable for solid soap making above MP temperature of 55°C
Mechanism of Action

Functional Performance Profile

Primary Mechanism · COX-2 & TNF-α Pathway
Anti-Inflammatory Action
Cucumber Extract's anti-inflammatory mechanism operates through two parallel pathways that together produce a comprehensive suppression of skin inflammation. The flavonoid fraction — quercetin, luteolin, apigenin, kaempferol — collectively inhibits cyclooxygenase-2 (COX-2) at the arachidonic acid binding site, reducing production of prostaglandin E2 (PGE2) and downstream pro-inflammatory cytokines including TNF-α. Their polycyclic flavone scaffolds permit competitive inhibition without the side effects of synthetic COX-2 inhibitors. The second pathway is mediated by idoBR1, the novel iminosugar amino acid isolated from Cucumis sativus in 2020 (ACS Omega). idoBR1 inhibits sialidase activity from both bacterial and human immune sources, preventing hyaluronic acid from binding to CD44 receptors on activated macrophages — a molecular interruption of the auto-amplification loop that drives chronic skin inflammation. This dual mechanism makes Cucumber Extract uniquely effective for the heat-aggravated redness endemic to Lahore's 42°C summers and the post-sun inflammation experienced across Pakistan year-round. Applied as a leave-on serum at 3–5%, measurable erythema reduction begins within 15–30 minutes — a clinically documented timeline confirmed in human volunteer studies.
Secondary Mechanism · ROS Quenching Network
Antioxidant Defence
The antioxidant network within Cucumber Extract covers multiple oxidative stress compartments simultaneously. Quercetin and luteolin (membrane-localised flavonoids) neutralise lipid peroxyl radicals at the stratum corneum lipid bilayer via hydrogen atom transfer (HAT) and electron transfer mechanisms. Ascorbic acid (Vitamin C fraction, 2–5 mg/100g) scavenges water-phase reactive oxygen species (ROS) generated by UV radiation and environmental pollution particulates — a significant concern for Pakistani urban consumers in Lahore and Karachi. Caffeic acid contributes broad-spectrum ROS quenching and mild modulation of the melanin synthesis pathway via tyrosinase pathway interference. Together, these three antioxidant classes provide layered defence across both the aqueous and lipid phases of the epidermis. DPPH assay IC₅₀ values for the crude aqueous extract are typically 1–10 mg/mL — moderate compared to concentrated actives like Green Tea Extract, but at the 1–5% use levels applied in cosmetics, Cucumber Extract contributes meaningfully to the formulation's total antioxidant capacity. For Pakistani formulators, the antioxidant benefit is particularly valuable in urban pollution contexts and for Fitzpatrick III–V skin where chronic ROS accumulation accelerates the inflammatory cascade leading to post-inflammatory hyperpigmentation (PIH).
Hydration Mechanism · Polysaccharide Film
Polysaccharide Hydration
The high-molecular-weight polysaccharide fraction of Cucumber Extract (MW exceeding 10,000 g/mol) functions as a non-occlusive humectant by depositing a hygroscopic moisture-binding film on the stratum corneum surface. This film attracts atmospheric water molecules and reduces transepidermal water loss (TEWL) through a secondary barrier layer above the skin's native lipid-protein matrix. Unlike occlusive emollients, the polysaccharide film is lightweight and non-greasy — a textural quality that is particularly well suited to Pakistan's oily and combination skin types (Fitzpatrick III–V) who reject heavy creams but need sustained hydration in dry, air-conditioned environments and during hot, humidity-variable conditions. The film is non-comedogenic (confirmed by CIR assessment and absence of occlusive fatty acids), making Cucumber Extract safe for acne-prone formulations where conventional occlusives are contraindicated. In gel and serum formulations, the polysaccharide fraction synergises with Carbomer 940 and Xanthan Gum to create a premium water-break gel texture with excellent consumer perception. The immediate onset of hydration film formation provides the characteristic "refreshing" skin feel that consumers in Lahore's 40°C+ summer associate with cooling and relief.
Surface Effects · Silica & Sensory
Surface Smoothing
Beyond the primary anti-inflammatory and hydration functions, Cucumber Extract delivers valuable surface-level skin effects that enhance consumer experience. The silica fraction (approximately 1–2 mg/100g) acts as a skin surface micro-filler, temporarily reducing the visible appearance of enlarged pores and fine periorbital lines in leave-on products — a benefit particularly valued in under-eye gels and pore-minimising toners targeting Pakistan's younger demographic. The mild astringent compounds (tannin-like polyphenols) produce a temporary tightening sensation on application through reversible protein precipitation at the skin surface, creating the "pore-minimising" perception associated with cucumber toners without the irritating dehydration of alcohol-based astringents. A secondary sensory function is provided by naturally occurring fragrant C6 compounds in the extract (hexanal, (E)-2-hexenal, (Z)-3-hexen-1-ol) — mild, fresh, green-cooling volatile notes that contribute sensory freshness to formulations without requiring added perfume. The CIR safety assessment confirms these fragrant components are non-sensitising at cosmetic use levels, allowing Pakistani formulators to claim "fragrance-free" while still benefiting from Cucumber Extract's naturally pleasant cooling scent — a significant advantage for sensitive-skin positioned products.
Anti-Inflammatory COX-2 Inhibitor TNF-α Blocker Antioxidant Polysaccharide Humectant De-Puffing Cooling Sensory Non-Comedogenic PIH Prevention Silica Smoothing Halal ✓ Kheera (کھیرے)
Formulation Accords

Three Complete Formulas

Three production-ready formulas from the Bio Shop™ Pakistan reference document — exact weights, exact percentages, all verified at 100g total. Formula 1 is a cooling under-eye gel. Formula 2 is a summer face mist for Lahore and Karachi markets. Formula 3 is a scalp cooling shampoo. All ingredients available at bioshop.pk. Add Cucumber Extract in cool-down phase below 45°C in all formulas.

Kheera-e-Beheen  ·  کھیرے بہین
Cooling & De-Puffing Under-Eye Gel · 100g batch · Urban women 20–45 · Eid & wedding preparation · 30ml amber glass jar
⚠ Source document formula totalled 100.50g. Distilled Water corrected from 75.10g → 74.60g to achieve exactly 100.00g. All other weights unchanged.
Glycerin (verify supplier)3.00g  3.00%
EDTA 2NA0.05g  0.05%
Xanthan Gum0.30g  0.30%
Carbomer 9400.30g  0.30%
Allantoin0.50g  0.50%
Germall Plus Liquid0.50g  0.50%
Organic Rose Water12.00g  12.00%
Method
1. Disperse Xanthan Gum in water; mix Carbomer 940 separately. Combine; heat to 70°C to hydrate. Cool to 45°C. 2. Neutralise Carbomer with NaOH solution. 3. Below 45°C add all actives: HA, Cucumber Extract, Allantoin, Chamomile Extract, Panthenol, Germall Plus, Niacinamide, EDTA. 4. Add Rose Water. 5. Adjust pH to 5.0–5.5 with citric acid. 6. Fill into pre-sterilised 30ml amber glass jars. Target retail: PKR 500–800.
Arctic Cool Face Mist  ·  گرمی سے نجات
Cooling & Refreshing Face Mist Spray · 100g compound → fill into 100ml aluminium spray bottles · Lahore & Karachi summer market · Outdoor workers & students
Organic Rose Water20.00g  20.00%
Glycerin (verify supplier)2.00g  2.00%
Sodium PCA1.00g  1.00%
EDTA 2NA0.05g  0.05%
Method
1. Heat distilled water to 70°C to dissolve HA; cool to 40°C. 2. Add Rose Water, Aloe Vera, Glycerin; mix. 3. Add all actives: Cucumber Extract, Niacinamide, Green Tea, Panthenol, Sodium PCA; stir. 4. Add Optiphen Plus, EDTA. 5. Adjust pH to 5.0–5.5. 6. Fill into 100ml aluminium or opaque PET spray bottles. Target retail: PKR 400–650.
Kheera-e-Nikhaar Scalp Shampoo  ·  کھیرے نکھار
Scalp-Cooling & Soothing Shampoo · 100g compound · Use as finished product in 200ml pump bottle · Pakistani consumers May–August heat season
⚠ Source document formula totalled 99.80g. Distilled Water corrected from 10.00g → 10.20g to achieve exactly 100.00g. All other weights unchanged.
Coco Betaine Liquid3.00g  3.00%
Glycerin (verify supplier)2.00g  2.00%
Sodium Chloride1.50g  1.50%
Germall Plus Liquid0.50g  0.50%
Method
1. Combine Shampoo Base with water at room temperature; mix gently. 2. Add Coco Betaine, Glycerin, NaCl; stir. 3. Add PQ-7 and Panthenol. 4. Cool to ≤40°C. 5. Add Cucumber Extract, Aloe Vera, Niacinamide, Chamomile Extract, Germall Plus, Peppermint EO. Mix gently — avoid foam. 6. Adjust pH to 5.0–5.5 with citric acid. Fill into 200ml opaque pump bottle. For rinse-off scalp cooling effect — best as leave-on scalp serum for sustained benefit.
Synergies

Classic Pairings

Cucumber Extract performs most powerfully in synergistic multi-active combinations. These pairings represent the most commercially successful and clinically validated combinations for Pakistani formulation, confirmed from the reference document. All available at bioshop.pk.

Botanical Active Comparison

Cucumber Extract vs. Alternatives

Aloe Vera Extract
Aloe barbadensis · Mucopolysaccharide Gel · Wound-Healing Primary
Skin Benefit vs. Cucumber
Superior wound-healing and burn-soothing; heavier gel texture; stronger occlusive moisture film; less cooling sensory freshness
EU Status / Use Level
✓ EU Permitted · 5–20% in after-sun; 1–5% in serums · Non-restricted · Widely CIR-assessed
Combination Strategy
The After-Sun Power Stack: 5–20% Aloe + 3–5% Cucumber Extract covers all post-UV recovery mechanisms simultaneously
Pakistan Application
Complementary not interchangeable; Aloe for heavier post-burn soothing; Cucumber for lightweight daily cooling; combine both for after-sun
Verdict: Best post-sun co-active. Together Aloe Vera + Cucumber Extract deliver the most complete after-sun recovery for Pakistani consumers. Available at bioshop.pk/products/aloe-vera-extract-liquid
Chamomile Extract
Matricaria recutita · Bisabolol + Apigenin · Targeted Anti-Erythema
Skin Benefit vs. Cucumber
More potent anti-redness per mg (bisabolol is clinically documented for erythema reduction); narrower application; less hydrating; stronger targeted anti-rosacea
EU Status / Use Level
✓ EU Permitted · 1–3% in calming formulations · Non-restricted · Bisabolol separately CIR-assessed
Combination Strategy
Maximum Calming Duo: 3–5% Cucumber + 1–2% Chamomile = most comprehensive botanical anti-redness profile available
Pakistan Application
Synergistic pair for clinical sensitive-skin serums; Chamomile adds bisabolol depth while Cucumber contributes cooling and hydration
Verdict: Strongest anti-redness synergy partner. Chamomile's bisabolol targets erythema specifically while Cucumber provides the broader soothing + hydration framework. Available at bioshop.pk/products/chamomile-extract-liquid
Green Tea Extract
Camellia sinensis · EGCG-Dominant · Highest Antioxidant Potency
Skin Benefit vs. Cucumber
Superior antioxidant potency (EGCG is one of the most potent naturally occurring antioxidants); less cooling and soothing; more astringent; no significant polysaccharide hydration
EU Status / Use Level
✓ EU Permitted · 0.5–3% · Non-restricted · EGCG studied for anti-aging and antioxidant claims
Combination Strategy
Antioxidant Defence Pair: 3–5% Cucumber + 0.5–1% Green Tea covers both aqueous-phase (EGCG) and membrane-phase (quercetin) antioxidant protection
Pakistan Application
Excellent for urban pollution defence formulations for Lahore and Karachi; Green Tea adds EGCG potency while Cucumber provides the cooling and calming consumer experience
Verdict: Complementary antioxidant layer. Green Tea cannot substitute for Cucumber's cooling, soothing, and hydration profile — but adds powerful EGCG antioxidant depth. Available at bioshop.pk/products/green-tea-extract-liquid
Licorice Extract
Glycyrrhiza glabra · Glabridin · Tyrosinase Inhibitor · Brightening Primary
Skin Benefit vs. Cucumber
Different application positioning: brightening-primary (direct tyrosinase inhibition by glabridin) vs. Cucumber's soothing-primary; Licorice less cooling; less hydration; indirect PIH prevention
EU Status / Use Level
✓ EU Permitted · 0.5–2% · Non-restricted · Glabridin well-documented for brightening efficacy in South Asian skin
Combination Strategy
PIH Prevention Stack: 3–5% Cucumber (reduce inflammation → prevent PIH trigger) + 0.5–1% Licorice (inhibit tyrosinase → prevent melanin overproduction) = comprehensive PIH management
Pakistan Application
Ideal pair for Pakistani skin types (Fitzpatrick III–V) prone to PIH from heat, acne, and sun exposure; Cucumber prevents the inflammatory trigger, Licorice addresses the pigmentation response
Verdict: PIH management partnership. Cucumber prevents PIH-triggering inflammation; Licorice prevents the resulting pigmentation. Together they address Pakistan's most common complexion concern. Available at bioshop.pk/products/licorice-extract-liquid
Safety & Regulations

EU Regulation & Safety Overview

Educational summary of publicly available regulatory and safety data as of 2024–2025. Always consult the current EU Cosmetics Regulation 1223/2009 text, CIR assessment documents, ingredient SDS, and a qualified regulatory advisor before commercial formulation. Pakistani formulators should review DRAP cosmetics notifications where applicable. This document does not constitute regulatory, legal, or safety advice.

EU Cosmetics Regulation 1223/2009 — Fully Permitted

Cucumber Extract (INCI: Cucumis Sativus (Cucumber) Fruit Extract, CAS 89998-01-6) is a fully permitted cosmetic ingredient under EU Regulation 1223/2009. It does not appear in Annex II (prohibited substances), Annex III (restricted substances), Annex IV (permitted colorants), Annex V (permitted preservatives), or Annex VI (permitted UV filters). Its absence from all restrictive annexes means it can be used in all cosmetic product categories — leave-on, rinse-off, eye area, lip products (where applicable), children's products — without quantitative limits, subject only to the general safety obligation of Article 3. CosIng entry lists functions as Skin Conditioning and Antioxidant. Pakistani manufacturers exporting to EU can include Cucumber Extract without triggering any specific regulatory obligations beyond standard cosmetic product safety assessment and GMP compliance.

CIR Safety Assessment (2012) — Approved Safe

The Cosmetic Ingredient Review (CIR) Expert Panel assessed six Cucumis sativus-derived cosmetic ingredients in 2012 and concluded they are safe in current practices of use and concentration. Key data: single insult patch test with 1% Cucumis Sativus Fruit Extract in 20 subjects — zero erythema or oedema at 24 or 48 hours; repeat insult patch test with 0.5–2.5% extract in O/W cream — no irritation, erythema, oedema, or sensitisation reactions. The ingredient's fragrant components (naturally occurring C6 aldehydes and alcohols) are noted as non-sensitising at typical use concentrations. No mutagenicity concern; anti-tumor promotion activity demonstrated in controlled studies. No reproductive toxicity data indicating concern at cosmetic use levels.

DRAP Pakistan & Halal — Fully Compliant

No current restriction under Drug Regulatory Authority of Pakistan (DRAP) cosmetics regulations. Pakistani formulators may include Cucumber Extract freely in domestic cosmetic products. Halal status is unambiguous: Cucumber Extract is derived entirely from Cucumis sativus fruit through aqueous or water-glycol extraction. No animal-derived components, no ethanol fermentation at any production stage, no non-halal processing aids in standard cosmetic-grade manufacturing. Major international Halal certification bodies (JAKIM Malaysia, HFA UK, IFANCA USA, Pakistan Halal Authority) recognise plant-derived aqueous botanical extracts as inherently Halal. Bio Shop™ Pakistan can provide manufacturer Halal compatibility documentation on request for brands seeking formal product certification.

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Clinical Safety Profile — Well-Documented

Acute oral toxicity: practically non-toxic (cucumber widely consumed globally as food — FDA 21 CFR 101.44 GRAS). Acute dermal toxicity: no adverse effects in CIR safety review at cosmetic use concentrations. Eye irritation: non-irritating at cosmetic use levels; specifically safe for periocular application at 1–3% (confirmed safe for eye gel applications). Skin irritation: non-irritating in controlled patch test (CIR 2012). Sensitisation potential: not a known skin sensitiser; no furocoumarins or phototoxicants in cucumber fruit extract. No phototoxicity; no UV-sensitisation risk — important for Pakistani formulators developing leave-on products used under intense sun exposure. Non-comedogenic. Safe during pregnancy at cosmetic use levels; no reproductive toxicity data indicating concern.

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Environmental Profile — Biodegradable Botanical

Cucumber Extract has a favourable environmental profile as a fully plant-derived, water-soluble botanical extract. The flavonoid and polyphenol fraction undergoes aerobic biodegradation in aquatic environments through standard microbial oxidation pathways. No persistent bioaccumulation concern. No heavy metal catalysis of environmental degradation. Aqueous botanical extracts are among the most environmentally friendly cosmetic active classes. For Pakistani formulators pursuing sustainability claims: Cucumber Extract is compatible with natural, organic, and eco-certified formulation frameworks. No special disposal requirements for diluted wastewater; dispose of concentrated waste responsibly per standard cosmetic manufacturing protocols.

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Formulation Stability Precautions

Key stability vulnerabilities require management. Heat: add below 45°C in all formulations — ascorbic acid begins degrading measurably above 40°C; flavonoids stable to 60°C but protect sensitive ascorbic acid fraction. UV: always use opaque or UV-blocking packaging; UV accelerates polyphenol photodegradation and causes colour darkening. Oxidation: use EDTA 2NA at 0.05–0.1% as metal chelator to prevent metal-catalysed ascorbic acid oxidation, especially in Pakistan where tap water quality is variable — always use distilled water. Microbial: aqueous botanical extracts support microbial growth — always include a broad-spectrum preservative (Germall Plus 0.5%, Optiphen Plus 1–1.5%, or Phenoxyethanol/Ethylhexylglycerin). Alkaline pH above 7.0: causes flavonoid oxidation and browning; maintain formulation pH at 5.0–6.5.

Handling & Storage

Storing in Pakistan's Climate

Temperature (Bulk)
Refrigerate at 2–10°C for maximum stability. Stable at room temperature 20–25°C short-term (3–6 months sealed). Active degradation accelerates above 30°C — always prioritise refrigeration in Pakistan
Container Type
Amber glass with PTFE-lined cap (preferred for UV protection). Opaque HDPE with tight-seal cap (acceptable). Avoid clear glass and transparent plastics — UV exposure causes polyphenol photodegradation and colour darkening
Light Exposure
Primary degradation risk after temperature. UV radiation accelerates polyphenol oxidation causing browning and loss of antioxidant activity. Store in inner room or dark refrigerator. Never place near windows or under fluorescent UV lighting
Shelf Life (Sealed)
12–18 months from manufacture (sealed, refrigerated). Once opened: use within 3–6 months. Signs of spoilage: darkening to amber-brown, off-odour (sour, fermented), turbidity, or pH outside 4.5–7.0
Addition Temperature
Always add to formulations in the cool-down phase below 45°C. Never add to hot water phase — ascorbic acid fraction is the most heat-labile component. In emulsions, complete hot-phase processing and cool before adding Cucumber Extract
Preservation — Required
Aqueous botanical extracts support microbial growth. Always preserve: Germall Plus Liquid 0.5% · Optiphen Plus 1–1.5% · Phenoxyethanol/Ethylhexylglycerin 0.8–1.0%. Formulations without adequate preservation will spoil within weeks in Pakistan's humid storage conditions
Lahore Summer (May–Aug)
Temperatures 42–45°C demand active refrigeration. Room-temperature storage in Lahore summer causes visible colour darkening (pale yellow → amber-brown) within 4–6 weeks and measurable polyphenol loss within 3 months. Request early-morning courier scheduling June–August. Never store in vehicles during the day
Karachi Coastal Climate
Year-round temperatures 28–38°C require refrigeration for maximum shelf life. Coastal humidity (75–90% RH) does not directly affect sealed extract but accelerates label degradation on packaging. After opening: hygroscopic nature means tight resealing is critical. Use desiccant packets in storage area to manage condensation
Quality verification: Genuine cosmetic-grade Cucumber Extract is a clear to pale yellow liquid, water-like viscosity, fresh cucumber odour, pH 4.5–6.5. Turbid or cloudy = microbial contamination or poor filtration. Off-odour (fermented, sour, rancid) = spoilage. pH outside 4.5–7.0 = degradation or incorrect formulation. No polyphenol activity detectable (smells like cucumber-scented water only) = likely plain water with fragrance added. Always request Certificate of Analysis confirming appearance, pH, microbial limits, heavy metals, and polyphenol assay from your supplier. Bio Shop™ Pakistan CoA documentation available on request.
FAQs

Frequently Asked Questions

Is Cucumber Extract halal? What is its complete plant-derived origin?+
Cucumber Extract is unambiguously halal — it has the clearest possible halal status of any cosmetic active. The complete production chain: (1) Fresh Cucumis sativus fruit (the same cucumber consumed as a halal food globally) is sorted, washed, and crushed or cold-pressed to produce juice. (2) The juice is macerated with an extraction solvent — either pure water, or a water-glycol mixture using propylene glycol or glycerin as the co-solvent. No ethanol, no alcohol fermentation, no animal-derived solvents at any stage. (3) The extract undergoes filtration (100–200 micron primary filtration followed by 0.2–0.45 micron membrane filtration), optional concentration, pH adjustment using food-grade citric acid or sodium hydroxide, and preservation. (4) Quality control testing confirms appearance, pH, microbial limits, and polyphenol content before packaging. All processing aids and solvents are mineral or plant-derived. There is no halal ambiguity, no grey area, and no certification challenge. Major international Halal certification bodies (JAKIM, HFA, IFANCA, Pakistan Halal Authority) all recognise aqueous plant-derived extracts as inherently Halal without requiring special certification. For brands seeking formal Halal certification of finished products, Bio Shop™ Pakistan can provide manufacturer Halal compatibility documentation confirming plant-only source and absence of ethanol at any production stage.
How do I verify quality and purity when purchasing Cucumber Extract in Pakistan?+
Four practical quality verification steps for Pakistani formulators. First, the appearance check: genuine cosmetic-grade Cucumber Extract is a clear to pale yellow, water-thin liquid. Turbidity or cloudiness indicates either microbial contamination (inadequate preservation during storage) or poor filtration from the manufacturer. Reject turbid material. Second, the odour check: fresh, mild, characteristic cucumber green freshness is the authentic aroma. A fermented, sour, or rancid off-odour indicates spoilage or degraded material. A purely perfumed "cucumber" scent with no fresh botanical character is the clearest sign of adulteration with cucumber fragrance in plain water. Third, the pH check: use a calibrated pH meter or pH strips — authentic extract should read pH 4.5–6.5. Values outside this range indicate degradation, incorrect formulation, or substituted material. Fourth, the supplier documentation check: always request a Certificate of Analysis (CoA) confirming appearance, pH, microbial counts (total aerobic ≤100 CFU/g, yeast & mould ≤10 CFU/g, pathogens absent), heavy metals (total ≤10 ppm), and crucially a total polyphenol assay confirming genuine extract content. Any legitimate supplier including Bio Shop™ Pakistan provides this documentation per batch.
Which skin types benefit most? Is Cucumber Extract safe for South Asian and Fitzpatrick III–VI skin?+
Cucumber Extract is one of the safest and most appropriate botanical actives specifically for South Asian skin types (Fitzpatrick III–VI), which predominate across Pakistan. The reasons are precise and important. First, there are no furocoumarins, no phototoxicants, no phytoestrogenic compounds, and no irritating volatile oils in cucumber fruit extract — the CIR patch test data confirms non-irritation across all skin types tested, and the ingredient carries no UV-sensitisation risk. Second, and more importantly, Cucumber Extract is exceptionally well-matched to the specific skin concerns of Fitzpatrick III–V Pakistani consumers. The most persistent cosmetic concern for this skin type is post-inflammatory hyperpigmentation (PIH) — the darkening that occurs after any inflammatory episode (heat, breakout, sun exposure, waxing). Cucumber Extract's multi-flavonoid anti-inflammatory action reduces the intensity and duration of the inflammatory stimulus, thereby limiting the melanin overproduction that causes PIH. By calming heat-redness, post-sun inflammation, and post-breakout reactivity, Cucumber Extract functions as a PIH prevention strategy — not merely a symptomatic soother. Third, Cucumber Extract's non-comedogenic, lightweight polysaccharide profile is appropriate for the oily and combination skin types prevalent in Pakistan's warm climate, where heavy occlusives commonly used in Western cosmetics are rejected by consumers. For all of these reasons, Cucumber Extract is a first-choice botanical active for the Pakistani market.
What use level should I choose? Can I use more than 5% and how do I measure accurately?+
The clinically studied and commercially validated standard use range is 1–5%, which delivers full anti-inflammatory, antioxidant, and hydration benefits with excellent skin tolerance across all skin types. The practical guidance by product type: toners and face mists 1–5%; light serums 2–3%; soothing serums 3–5%; eye gels 3–5% (periocular safe confirmed at 1–3%); after-sun products 3–5%; face moisturisers 1–3%; shampoos and cleansers 1–2% (rinse-off limits benefit duration). Using above 5% (up to 10%) is not contraindicated by safety data — the CIR safety assessment does not establish an upper use limit — and may increase efficacy in professional treatment masks, intensive eye gels, and sheet mask essences. However, above 5% there is a practical consideration: a mild yellow-green tint may develop in the finished product as extract colour becomes visible, which may require formulation adjustment or opaque packaging. For most applications, supplementing with co-actives (Allantoin 0.5%, Niacinamide 2–3%, Chamomile Extract 1%) delivers better multi-mechanism efficacy than simply increasing Cucumber Extract concentration beyond 5%. Measurement: Cucumber Extract is a free-flowing liquid easily measured with a precision digital balance. A standard 0.01g balance is sufficient for concentrations at or above 1% in 100g batches; for trace-level addition (0.5% in small batches), use a 0.001g analytical balance.
How should I store Cucumber Extract in Pakistan — specifically Lahore and Karachi?+
Storage in Pakistan requires specific management for two distinct climate profiles. For Lahore's extreme summer heat (42–45°C in May through August): refrigeration at 2–10°C is mandatory during summer months. At room temperature in Lahore summer, colour darkening (pale yellow to amber-brown) is observable within 4–6 weeks and polyphenol loss becomes measurable within 3 months. Practical measures: maintain a dedicated fragrance or cosmetic storage refrigerator; request early-morning courier delivery scheduling during June–August when ambient temperatures peak; never leave in parked vehicles during the day; use insulated cooler boxes for any transportation during summer. For Karachi's coastal climate (28–38°C year-round, 75–90% RH): refrigeration is recommended for maximum shelf life throughout the year. The coastal humidity does not directly affect sealed extract but accelerates label and packaging degradation — use waterproof or laminated labels. After opening: the extract is hygroscopic, meaning it attracts atmospheric moisture — seal containers immediately after every use; use desiccant packets in storage drawers; monitor container lids for condensation. For both cities: use amber glass or opaque HDPE containers; minimise headspace in partially used containers by transferring to smaller bottles; never store near UV light sources or heat. Shelf life: sealed and refrigerated 12–18 months from manufacture; opened and refrigerated 3–6 months with proper resealing discipline.
What is the EU regulatory and export status? Can Pakistani brands include Cucumber Extract in products for European markets?+
Cucumber Extract has a completely unrestricted status for EU export — one of the most favourable regulatory profiles available to Pakistani cosmetic exporters. Under EU Regulation (EC) No 1223/2009, Cucumis Sativus (Cucumber) Fruit Extract is not listed in any restrictive Annex (II, III, IV, V, or VI), meaning there are no concentration limits, no mandatory label declarations, and no category restrictions. It can be included in all cosmetic product types — leave-on serums, eye gels, toners, after-sun, rinse-off cleansers, shampoos — without any specific regulatory obligations beyond standard cosmetic product safety assessment (Article 3) and GMP compliance. For brands making specific anti-inflammatory or soothing claims in EU-market products, professional practice recommends maintaining use levels within the clinically studied range (1–5%) and retaining the relevant Akhtar et al. 2011 clinical study and CIR 2012 safety assessment in the product information file to substantiate claims under Article 20. For US market: the CIR Expert Panel (2012) concluded Cucumber-derived cosmetic ingredients are safe in current practices of use — no FDA ingredient restrictions. For Pakistan domestic market: DRAP does not restrict Cucumber Extract; formulators may use it freely in all cosmetic products. The combination of EU-permitted, CIR-approved, DRAP-unrestricted, and Halal-unambiguous status makes Cucumber Extract one of the most regulatory-friendly botanical actives for Pakistani brands with international ambitions.
Which Pakistani consumer segments respond best to Cucumber Extract-based products?+
Four Pakistani consumer segments show the strongest commercial response to Cucumber Extract formulations. First, urban women aged 20–45 in Lahore and Karachi seeking lightweight, science-backed skincare for daily use — this segment is ingredient-educated, follows K-beauty and international skincare trends on social media, and is attracted to ingredients with both traditional familiarity (kheera as a culturally trusted cooling remedy) and modern scientific credibility (COX-2 inhibition, idoBR1 mechanism). This is the highest-margin segment for Cucumber Extract serums and eye gels. Second, consumers dealing with heat-related skin concerns — redness, puffiness, post-sun inflammation — across all urban demographics. Pakistan's intense sun exposure and extreme summer temperatures create year-round demand for cooling and soothing products; Cucumber Extract's fast-onset anti-inflammatory effect delivers a demonstrable consumer benefit in this context. Third, the Eid and wedding season consumer: under-eye puffiness from disrupted sleep and social fatigue is a near-universal complaint among Pakistani women in the weeks surrounding major events; an under-eye cucumber gel is positioned perfectly for this seasonal spike in demand. Fourth, outdoor workers, students, and sports participants who experience daily intense UV exposure but have limited access to sophisticated after-sun products — a category virtually absent from Pakistan's retail shelves despite significant market need. Regionally: Lahore consumers prefer cucumber paired with rose and traditional botanicals; Karachi consumers prefer cucumber with aquatic/citrus freshness; Gulf export buyers value cucumber in premium soothing serums positioned alongside niacinamide and hyaluronic acid.
What Urdu product names work for Cucumber Extract formulations? How does it perform in Pakistan's summer heat?+
Recommended Urdu naming vocabulary for Cucumber Extract-featuring compositions draws on the rich cultural tradition of kheera as a cooling, healing plant in Pakistan. Core Urdu terms: Kheera (کھیرے — cucumber), Thandak (تھنڈک — cooling/coldness), Arq (عرق — extract/water), Beheen (بہین — gentle, refined), Nikhaar (نکھار — brightening/rejuvenation), Sukoon (سکون — peace/calm), Garmi se Nijaat (گرمی سے نجات — relief from heat), Ankhon ki Sheetalta (آنکھوں کی شیتلتا — eye cooling). Example product names: Kheera-e-Beheen (کھیرے بہین — refined cucumber, for a premium eye gel or serum); Thandak-e-Kheera (تھنڈک کھیرے — cucumber cooling, for a summer face mist); Garmi se Nijaat Face Mist (for outdoor-targeted face spray); Kheere ka Arq Toner (کھیرے کا عرق — cucumber water toner, classic and direct); Ankhon ka Sukoon Eye Gel (eyes' tranquillity — for under-eye depuffing). The marketing narrative "Nana ki prescription, aaj ka science" (grandmother's prescription, today's science) is one of the most powerful framings available for this ingredient. Hot weather performance is genuinely a commercial strength: higher skin temperatures in Lahore's 42–45°C summer accelerate evaporative cooling from the aqueous matrix of Cucumber Extract formulations, creating an intensified refreshing sensation. The anti-inflammatory flavonoids are also more urgently needed in summer heat when sun-induced COX-2 upregulation peaks. Ensure your formulation heart actives (Niacinamide, Hyaluronic Acid) are robust enough to sustain consumer satisfaction as the initial cooling sensation is absorbed by the skin.
Full Reference Document

Dive Deeper — Read the Complete Guide

The complete professional reference document covers everything on this page and substantially more: full idoBR1 isolation chemistry and mechanism (ACS Omega 2020 study), complete bioactive compound profiles with concentration ranges in fresh cucumber, detailed COX-2 inhibition mechanism diagrams, comprehensive skin layer interaction analysis from stratum corneum through viable epidermis, advanced Liposomal and niosomal encapsulation formulation strategies for enhanced bioavailability, full Unani medicine (Tibb-e-Unani) cultural documentation including Ibn Sina and Al-Biruni's classification of kheera as Bard wa Ratb (cold & moist), three complete product concept business cases with PKR pricing analysis, comprehensive Lahore and Karachi climate storage protocols, accelerated stability testing methodology for Pakistan conditions, detailed formulation compatibility matrix for all major cosmetic ingredient classes, and a 20-term professional glossary covering all key botanical extract and skin science terminology.