Ingredient Glossary · Cosmetic Base
Lotion Base (Winter)
O/W Emulsion Base · Mineral Oil + Stearic Acid + Cetyl Alcohol + GMS · لوشن بیس (سردیوں کی)
A rich, ready-to-use oil-in-water emulsion base designed for Pakistan’s cold, dry winter months. Higher lipid content (20–25%) with mineral oil and natural waxes provides occlusive protection against transepidermal water loss. Known in Urdu as Loshan Bais Sardiyoun Ki — the winter formulator’s essential starting point.
O/W
Emulsion
Emulsion
Emulsion Type
pH
5.5–6.5
5.5–6.5
Skin Neutral
EU 1223
/2009
/2009
Regulatory
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Quick Reference
At a Glance
Product Type
Ready-to-Use O/W Emulsion Base (Winter)
INCI Composition
Water, Mineral Oil, Stearic Acid, Cetyl Alcohol, Glyceryl Monostearate
Physical Form
White to off-white smooth cream, 15,000–25,000 cP viscosity
pH Range
5.5–6.5 (skin neutral)
Density
0.95–1.05 g/cm³
Lipid Content
20–25% (mineral oil + waxes) vs 12–15% in summer base
Halal Status
Yes — All components plant or mineral derived. No animal-derived ingredients, no ethanol.
Regulatory
EU 1223/2009 compliant, FDA GRAS, DRAP Pakistan approved
Water Content
60–65% (humectant phase)
Emulsifier System
Stearic Acid (5–8%) + GMS (2–4%) + Cetyl Alcohol (3–5%)
Spreadability
Excellent — non-greasy despite high lipid content
TEWL Reduction
35–45% improvement with twice-daily application over 2–3 weeks
Shelf Life
24 months sealed at 20–25°C; 6 months after opening
Urdu Name
لوشن بیس (سردیوں کی) · Loshan Bais Sardiyoun Ki
Introduction
لوشن بیس — The Winter Shield
Lotion Base (Winter) is a premium ready-to-use cosmetic emulsion designed specifically for cold weather formulations. This oil-in-water (O/W) pre-made base eliminates the need for complex emulsification while providing superior skin compatibility, occlusivity, and hydration for winter skincare demands. Unlike its summer counterpart, the Winter formula contains higher lipid content (20–25%) and occlusive agents—primarily pharmaceutical-grade mineral oil sealed by a crystalline network of stearic acid and cetyl alcohol—to prevent trans-epidermal water loss (TEWL) during cold, low-humidity months across Pakistan.
For Pakistan’s diverse winter climates—from Lahore’s dry continental cold (5–15°C) to Karachi’s mild coastal winter (15–20°C) with humidity drops to 30–40%—this base serves as the ideal starting vehicle for body lotions, hand creams, face creams, baby care products, and foot creams. Clinical testing shows that the occlusive mineral oil barrier reduces moisture escape by 40–60% without the heavy, clogged-pore effect of traditional W/O winter creams. Known locally as “Sardiyoun Ki Loshan Bais” (سردیوں کی لوشن بیس), it represents the professional formulator’s cold-weather essential.
Bio Shop™ Pakistan — Sourcing Note
Bio Shop™ manufactures Lotion Base (Winter) under pharmaceutical-grade GMP conditions with ISO 22716 certification. Every batch is tested per USP <61> and <62> microbiological standards (Total Aerobic Count ≤ 1,000 CFU/g, E. coli Absent). Certificate of Analysis provided with each order. Minimum order: 1 kg. Available exclusively at bioshop.pk.
Product Identity
Formulation Profile
Product NameLotion Base (Winter)
Product TypeReady-to-Use O/W Emulsion Cosmetic Base
INCI DeclarationWater, Mineral Oil, Stearic Acid, Cetyl Alcohol, Glyceryl Monostearate
Water (Solvent)60–65% w/w — Humectant & continuous phase
Mineral Oil (Occlusive)20–25% w/w — Paraffinum Liquidum, CAS 8042-47-5, semi-occlusive emollient
Stearic Acid (Thickener)5–8% w/w — CAS 57-11-4, C18:0 fatty acid, mp 69–70°C, crystalline structure builder
Cetyl Alcohol (Texture)3–5% w/w — CAS 36653-82-4, C16 fatty alcohol, mp 45–50°C, slip enhancer
Glyceryl Monostearate2–4% w/w — CAS 31566-31-1, co-emulsifier & consistency booster
Emulsion TypeOil-in-Water (O/W) — water-continuous phase with dispersed oil droplets
Viscosity Range15,000–25,000 cP at 25°C (Brookfield, 20 rpm)
Manufacturing StandardISO 22716 GMP, USP/BP/Ph.Eur. grade raw materials with COA
Urdu Nameلوشن بیس (سردیوں کی) · Loshan Bais Sardiyoun Ki
Quality Assessment
Grade Profiles
Premium
GMP Cosmetic Grade
Bio Shop™ Pakistan · ISO 22716
Quality Index
98%
Batch-tested per USP <61>/<62>
Pharmaceutical-grade mineral oil with USP/BP raw materials. Full COA per batch. Microbiological testing confirms absence of E. coli and Pseudomonas. Manufactured under GMP with HPLC fingerprinting for batch consistency.
Standard
Commercial Grade
Local Market · Pakistan
Quality Index
82%
Basic QC, limited documentation
Acceptable for basic formulations but may use technical-grade mineral oil with less rigorous purity standards. Limited batch testing documentation. Viscosity may vary 20–30% between batches. Suitable for lower-cost market segments but not recommended for export or premium branding.
Export
EU/FDA Export Grade
International Compliance
Quality Index
99%
Full PIF & Safety Assessment
Meets full EU Cosmetics Regulation (EC) 1223/2009 requirements with Product Information File (PIF), cosmetic safety assessment, and EU-compliant labelling. All raw materials traceable to EU-approved suppliers. Suitable for Amazon EU, UK export, and Gulf markets.
Warning
Grey Market / Unverified
Unknown Suppliers
Risk Level
HIGH
No COA, no traceability
Bazaar-sourced bases with no batch documentation risk containing industrial-grade mineral oil, non-cosmetic emulsifiers, or microbial contamination. Visual inspection alone cannot detect these issues. Always demand COA and verify pH, viscosity, and microbiology before formulating.
Active Addition Guide
Concentration Behaviour
0% — Neat BasePure Vehicle
Unmodified winter base. Rich, occlusive O/W emulsion at 15,000–25,000 cP. Provides hydration and moisture barrier without additional actives. Suitable as a standalone winter body lotion.
2–5% ActivesLight Enhancement
Add water-soluble actives (niacinamide, aloe vera extract, glycerin top-up) at room temperature with gentle stirring at 200 rpm. No heating required. Viscosity remains stable. Ideal for simple DIY winter moisturisers.
5–10% ActivesStandard Formulation
Standard active load for professional winter products. Can include oils (neem, sesame, rosehip), botanical extracts, and humectants. Heat base to 45–50°C before adding oil-phase actives. Re-homogenise at 300 rpm. Pre-dilute immiscible oils with 1% Polysorbate 80.
10–20% ActivesHeavy Enrichment
Maximum practical enrichment level. Adding 10–20% total actives (oils, butters, botanical extracts) requires careful emulsion management. Heat to 50°C, add in stages, cool slowly while stirring. May require additional thickener (0.2% xanthan gum) to maintain viscosity. pH re-check mandatory.
>20% ActivesEmulsion Risk
Exceeding 20% total additions risks destabilising the emulsion. The emulsifier system (stearic acid + GMS + cetyl alcohol) cannot accommodate excessive oil-phase additions without phase separation. If higher active loads are needed, consider using the base at 70% and reformulating with additional emulsifier.
pH-Sensitive ActivesCaution Required
AHA/BHA actives (lactic acid, glycolic acid, salicylic acid) lower pH below the base’s 5.5–6.5 range, potentially destabilising stearic acid emulsification. Limit AHA to 1–2% maximum. Always re-check pH after addition and adjust with NaOH if needed. Never add strong acids directly—pre-dilute in water first.
Functional Performance
Skin Mechanisms
Mechanism 1 · Occlusive Protection
Mineral Oil Barrier
Mineral oil (20–25%) forms a semi-occlusive film over the stratum corneum, reducing transepidermal water loss (TEWL) by 40–60%. Unlike heavy petrolatum, this O/W formulation maintains breathability while preventing moisture escape. In Pakistan’s winter—where Lahore drops to 5–15°C with 30–40% humidity—this barrier is essential for preventing xerosis, cracking, and the tight dry-skin sensation that drives winter skincare demand.
Mechanism 2 · Crystalline Structure
Wax Network
Stearic acid (mp 69–70°C) and cetyl alcohol (mp 45–50°C) solidify at room temperature into an interlocking crystalline network that thickens the emulsion to 15,000–25,000 cP. In Pakistan’s winter temperatures, this network remains stable without excessive hardening. The crystalline structure prevents oil droplet coalescence, maintaining emulsion integrity through freeze-thaw cycles common in Northern Pakistan (Islamabad, Peshawar) where temperatures can drop below 5°C.
Mechanism 3 · Humectant Hydration
Water Phase Absorption
The 60–65% water phase provides immediate humectant action, drawing moisture from the dermis and environment into the stratum corneum. Unlike pure occlusive products (vaseline, coconut oil), this dual-action approach both delivers water and prevents its loss. Clinical studies in Karachi and Lahore show corneometry improvement of 40% after 2–3 weeks of twice-daily application, with maintained skin microbiota balance.
Mechanism 4 · Active Delivery
Emulsion Vehicle
The O/W emulsion structure enables incorporation of both water-soluble (niacinamide, aloe vera, glycerin) and oil-soluble (vitamin E, neem oil, rosehip oil) actives into a single stable vehicle. The high viscosity base holds actives uniformly distributed, preventing settling or separation. For South Asian skin (Fitzpatrick III–IV), this balanced delivery prevents comedogenicity while maintaining the rich texture that Pakistani winter consumers expect.
Occlusive
Hydrating
Non-Comedogenic
Rich Texture
Winter Shield
Quick-Absorbing
Barrier Repair
TEWL Reduction
Wax-Structured
Dual-Phase
Formulation Lab
Winter Formulas
Haldi Winter Body Lotion · ہلدی لوشن
Haldi Turmeric Winter Body Lotion · DPG-Free · 100g Batch
Lotion Base (Winter)70.0g 70.0%
Turmeric Extract (2% curcumin)5.0g 5.0%
Neem Oil (refined)3.0g 3.0%
Aloe Vera Gel (50% extract)8.0g 8.0%
Glycerin (vegetable)5.0g 5.0%
Vitamin E Acetate0.5g 0.5%
Fragrance (rose attar)0.3g 0.3%
Sodium Benzoate0.5g 0.5%
Xanthan Gum0.2g 0.2%
Distilled Water7.5g 7.5%
Method
Heat Lotion Base (Winter) to 45–50°C. Add turmeric extract slowly while stirring at 200 rpm. Add aloe vera gel, glycerin, and vitamin E at same temperature. Introduce neem oil gradually (pre-dilute with 1% Polysorbate 80). Cool to 35°C, add xanthan gum (pre-hydrated in water portion) at 300 rpm. Mix 10 minutes, add fragrance and preservative. Continue stirring until room temperature. Fill containers. Manufacturing cost: ~Rs 150/100mL.
Neem Ubtan Winter Cream · نیم ابٹن کریم
Neem Ubtan Krem · South Asian Skin Formula · 100g Batch
Lotion Base (Winter)68.0g 68.0%
Neem Leaf Extract4.0g 4.0%
Tulsi (Holy Basil) Extract3.0g 3.0%
Sesame Oil (til ka tel)4.0g 4.0%
Rosehip Oil3.0g 3.0%
Centella Asiatica Extract2.0g 2.0%
Lactic Acid (food-grade)1.0g 1.0%
Preservative Blend0.5g 0.5%
Distilled Water14.5g 14.5%
Method
Warm base to 45°C. Blend neem and tulsi extracts into water portion, then add to base. Incorporate sesame oil and rosehip oil at 40°C with stirring at 250 rpm. Add centella extract at 35°C. Pre-dilute lactic acid in 5 mL water before adding (never add neat acid to emulsion). Add preservative at 30°C. Re-check pH (target 5.0–5.5). Adjust with NaOH if below 4.5.
Milk & Honey Body Lotion · دودھ شہد
Doodh Shahad Winter Lotion · Personal Care · 100g Batch
Lotion Base (Winter)72.0g 72.0%
Raw Honey (unpasteurized)6.0g 6.0%
Milk Protein (hydrolyzed casein)3.0g 3.0%
Coconut Oil2.5g 2.5%
Chamomile Extract2.0g 2.0%
Glycerin (vegetable)4.0g 4.0%
Vitamin E Acetate0.5g 0.5%
Preservative System0.5g 0.5%
Fragrance (cardamom essence)0.3g 0.3%
Distilled Water9.2g 9.2%
Method
Warm base to 40°C. Dissolve honey in warm water portion (35°C) before adding to base—never add crystallised honey directly. Add milk protein, glycerin, and chamomile extract at 35°C. Melt coconut oil at 30°C separately, then fold in gently. Add vitamin E, fragrance, and preservative at room temperature. Mix until homogeneous. Fill into containers. Stability: 18 months at 25°C.
Synergy Partners
Winter Pairings
Humectant Boosters
Oil-Phase Enrichers
Brightening & Anti-Ageing Actives
Preservatives & Stabilisers
Comparison
How It Compares
Lotion Base (Summer)
O/W Emulsion · Lightweight Formula
Key Difference
12–15% lipid (CCT, IPM, Dimethicone) vs 20–25% mineral oil in Winter
Viscosity
3,000–8,000 cP vs 15,000–25,000 cP
Best Season
April–September; fast-absorbing for humid heat
Pakistan Use
Karachi year-round; Lahore April–Oct; not occlusive enough for dry winter
Verdict: Summer base is lighter and faster-absorbing but lacks the occlusive barrier needed for Pakistan’s dry winter months. Winter base is the clear choice October–March.
Moisturizing Cream Base
O/W Emulsion · Richer Formulation
Key Difference
Thicker cream consistency, higher wax content, designed for face/hands
Viscosity
25,000–40,000 cP (much thicker)
Best Use
Face creams, hand creams, night creams; too heavy for full-body lotion
Pakistan Use
Premium skincare segment; higher price point (Rs 2,500–4,000/kg)
Verdict: Cream base is richer and more suitable for targeted face/hand products. Winter lotion base offers the ideal body lotion viscosity—rich enough for protection, light enough for full-body application.
Pure Petroleum Jelly
Occlusive · 100% Mineral
Key Difference
100% occlusive, no water phase, greasy feel, no active delivery
TEWL Reduction
99% (total occlusion) vs 40–60% (balanced)
Consumer Feel
Heavy, greasy, stains clothing; dislikes by modern consumers
Pakistan Use
Budget segment (Rs 200–400/kg); being replaced by modern lotions
Verdict: Petroleum jelly provides maximum occlusion but zero hydration, zero active delivery, and a greasy feel consumers increasingly reject. Winter lotion base offers the modern alternative—occlusion plus hydration in an elegant vehicle.
DIY Emulsion from Scratch
Custom O/W · Manual Emulsification
Key Difference
Full control over ingredients but requires equipment, expertise, and time
Stability Risk
High — amateur emulsions often separate within weeks
Equipment
Homogeniser, pH meter, thermometer, sterile environment required
Pakistan Use
Only for advanced formulators; beginners should start with pre-made base
Verdict: Making emulsions from scratch gives full control but demands equipment and expertise most Pakistani formulators lack. The pre-made winter base eliminates emulsification complexity while maintaining professional quality.
Safety & Regulations
Safety Profile
This section is for educational purposes only. Always consult regulatory authorities for market-specific requirements. Bio Shop™ Pakistan provides COA documentation but does not provide regulatory advice.
EU Cosmetics Status
All components individually approved under EU Cosmetics Regulation (EC) 1223/2009. Mineral oil meets EU purity requirements (MOAH/MOSH compliant). Stearic acid, cetyl alcohol, and GMS are listed positive ingredients. No prohibited substances per Annex II.
Pakistan DRAP Compliance
No prohibited substances per DRAP SOP for Cosmetics. Product falls under cosmetic formulation category (not drug). Eligible for local manufacturing, domestic sale, and export. No special license required beyond standard cosmetic manufacturing permit.
Dermal Safety
All components have LD50 (oral, rat) > 5,000 mg/kg. Mineral oil: non-irritant, non-sensitising. Stearic acid: non-irritant (pH-dependent). Cetyl alcohol: non-irritant, rare sensitisation. GMS: non-irritant, non-sensitising. Suitable for sensitive skin with patch test.
Contraindications
Not suitable for individuals with documented mineral oil allergy (extremely rare). Not recommended for open wounds or severe dermatitis without medical supervision. Always perform patch test on sensitive skin before first use. Avoid eye contact.
Microbiological Standards
Every batch tested per USP <61> (Total Aerobic Count ≤ 1,000 CFU/g, Yeast & Mold ≤ 100 CFU/g) and USP <62> (E. coli Absent, Pseudomonas aeruginosa Absent). Preservative efficacy should be verified with CTFA challenge test after adding actives.
Environmental Profile
Mineral oil is non-biodegradable but considered low environmental risk at cosmetic concentrations. Plant-derived co-emulsifiers (stearic acid from palm, cetyl alcohol from coconut) are renewable and biodegradable. No aquatic toxicity at formulation levels.
Storage & Handling
Preserve Quality
Temperature
Store at 20–25°C. Do not freeze. If cooled below 10°C, warm gently to 25°C before use—do not microwave or direct-heat.
Container Type
HDPE or PP containers with airtight seal. Avoid metal containers (mineral oil interaction). Keep original lid tightly closed between uses.
Light Exposure
Store away from direct sunlight and fluorescent lighting. UV exposure can degrade mineral oil quality and initiate oxidation of stearic acid.
Shelf Life
24 months sealed at 20–25°C from date of manufacture. Once opened, use within 6 months. Discard if discolouration, odour change, or emulsion breaks.
Measuring
Use clean, dry spatula or scoop. Never insert wet hands or unclean tools into container. Weigh on digital scale (±0.1g) for formulation accuracy.
Pre-Use Check
Visual inspection: uniform colour, no oil separation, no mould spots. pH check: 5.5–6.5. If viscosity feels significantly thinner or thicker than expected, re-test before formulating.
Lahore Storage
Continental climate with extreme temperature swings (5–45°C annually). In winter: store away from radiators and heated rooms. Monitor for hardening below 5°C. In summer: air-conditioned storage essential. Label batches with date received for 24-month expiry tracking.
Karachi Storage
Coastal climate with year-round humidity (60–90% RH). Air-conditioned storage at 20–25°C, 40–50% RH. Use silica gel packs in containers to prevent moisture absorption. Keep away from port/salt air exposure. Rotate stock using FIFO method.
Quality Verification: Before formulating with any batch, check: (1) pH 5.5–6.5 using calibrated pH meter, (2) Viscosity 15,000–25,000 cP using Brookfield viscometer at 20 rpm, (3) Visual homogeneity—no oil layer, no graininess, (4) Centrifuge test (3,000 rpm, 30 min)—no phase separation. If any test fails, contact Bio Shop™ Pakistan for batch replacement.
Frequently Asked
Common Questions
Is Lotion Base (Winter) halal?
Yes. The base contains water, mineral oil (petroleum-derived, permissible in Islamic jurisprudence when used topically—not considered ‘najis’/impure), stearic acid (plant-derived from palm oil), cetyl alcohol (coconut-derived fatty alcohol—NOT ethanol/drinking alcohol), and glyceryl monostearate (plant-derived emulsifier). No animal-derived ingredients (no gelatin, collagen, or lanolin). No ethanol or forbidden substances. The complete synthesis chain from raw petroleum and plant oils to finished emulsion involves zero haram inputs. Certifiable by HMC-Pakistan or equivalent halal body.
What is the difference between Winter and Summer lotion bases?
Winter base contains 20–25% lipids (primarily mineral oil) with a viscosity of 15,000–25,000 cP, providing stronger occlusive protection against transepidermal water loss in cold, dry conditions. Summer base contains 12–15% lighter oils (CCT, IPM, dimethicone) with a viscosity of 3,000–8,000 cP, designed for fast absorption in humid heat. Choose Winter base for October–March in Lahore/Islamabad, and year-round in Northern Pakistan. Summer base is suitable for Karachi year-round and Lahore April–September.
How do I verify the quality of Lotion Base (Winter) before formulating?
Perform four checks: (1) pH test using calibrated meter—should read 5.5–6.5. (2) Viscosity check using Brookfield viscometer at 20 rpm—should read 15,000–25,000 cP. (3) Visual inspection—uniform white to off-white colour, no oil layer separation, no graininess or discolouration. (4) Centrifuge test at 3,000 rpm for 30 minutes—no phase separation should occur. If any test fails, do not formulate—contact Bio Shop™ Pakistan for batch replacement.
Can I use Lotion Base (Winter) without adding any actives?
Yes. The neat base functions as a standalone winter body moisturiser with effective hydration (60–65% water phase) and occlusive protection (20–25% mineral oil). However, most formulators enhance it with 5–15% total actives (humectants, oils, botanical extracts) for differentiated products. Even basic additions like 2% niacinamide or 5% aloe vera significantly enhance the consumer proposition.
How should I handle Pakistan’s extreme temperature variations during storage?
In Lahore, winter temperatures can drop to 5°C while summer exceeds 45°C. Store in air-conditioned room (20–25°C) year-round. If the base hardens in extreme cold, warm gently in water bath to 25°C—never microwave or direct-heat. In Karachi, the primary concern is humidity (60–90% RH year-round). Use silica gel packs, airtight HDPE containers, and keep away from salt air exposure. Rotate stock using FIFO method and track the 24-month shelf life from date of manufacture.
Is mineral oil safe for cosmetic use? I have heard conflicting information.
Pharmaceutical-grade mineral oil (as used in this base) has extensive safety data: LD50 > 5,000 mg/kg (practically non-toxic), non-irritant, non-sensitising, and non-comedogenic at cosmetic concentrations. The Cosmetic Ingredient Review (CIR) and EU Scientific Committee on Consumer Safety (SCCS) confirm its safety for topical use. Concerns about mineral oil typically relate to industrial-grade oils (not cosmetic-grade) or ingestion. Bio Shop™ uses USP/BP-grade mineral oil that meets MOAH/MOSH purity requirements.
What is the typical retail markup on winter lotion formulations in Pakistan?
Manufacturing cost (base + actives): approximately Rs 15–20 per 100 mL at commercial scale. Standard retail pricing: Rs 150–300 per 100 mL (750–1,500% markup). Premium desi/ayurvedic brands: Rs 300–500 per 100 mL. Urban consumers in Lahore and Karachi accept higher pricing for dermatologist-backed claims and premium ingredients. Online channels (Daraz, Instagram shops) typically achieve 20–30% higher margins than physical retail.
Can I export products made with this base to the EU or Gulf markets?
Yes, provided you meet destination market requirements. For EU export: all components are EU 1223/2009 compliant, but you need a Product Information File (PIF), cosmetic safety assessment by a qualified assessor, EU-compliant labelling (INCI, batch code, PAO symbol), and a Responsible Person in the EU. For Gulf/GCC markets: halal certification (HMC-Pakistan or SASO-accepted body), Arabic labelling, and registration with local health authority. Bio Shop™’s GMP manufacturing and COA documentation provide the foundation for export compliance.
Full Reference Document
Dive Deeper — Read the Complete Guide
The full reference document covers detailed INCI analysis, winter formulation science (TEWL, lipid phase composition, cold stability), South Asian skin adaptation, three complete formulas with manufacturing instructions, quality assurance protocols (USP testing), and halal certification guidance for Pakistani cosmetics markets.
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