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Rosemary Extract
Rosemary Extract
Key Functions: Acts as a powerful antioxidant and natural preservative booster in cosmetic formulations.
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Information About Rosemary Extract
✅ Key Features
- Rich in carnosic acid and rosmarinic acid
- Extends shelf life of oils and emulsions
- Helps prevent rancidity in natural formulations
- Offers mild antimicrobial properties
- Suitable for both skincare and haircare products
🔬 Description
Rosemary Extract is a potent botanical ingredient derived from Rosmarinus officinalis, prized for its high antioxidant content. In cosmetic formulations, it serves dual roles: protecting oils and actives from oxidation, and offering mild antimicrobial benefits. It’s ideal for boosting product shelf life without synthetic preservatives. Beyond preservation, Rosemary Extract is also appreciated for its soothing, anti-inflammatory effects, making it suitable for irritated or acne-prone skin. This extract blends seamlessly in both oil-based and emulsified systems.
📊 Technical Data
INCI Name: Rosmarinus Officinalis (Rosemary) Leaf Extract
CAS Number: 84604-14-8
Solubility: Oil-soluble (some versions are water-soluble depending on standardization)
Add Phase: Cool-down phase (below 40°C recommended)
pH Stability: Stable in pH 4.0–7.5
Processing Temperature: Below 40°C
Appearance: Brown to dark green liquid or viscous resin
Odor: Herbaceous, sharp, slightly medicinal
Molecular Weight: Variable (depends on extract standardization)
Flash Point: > 100°C
Boiling Point: Not applicable (plant extract blend)
Density: ~0.9–1.1 g/cm³
🧪 Recommended Usage
- Typical Usage: 0.1–0.5% as antioxidant; up to 2% for skin benefits
- Best used in: Creams, Lotions, Balms, Hair Oils, Shampoos
- Add at cool-down phase; excessive heat can reduce antioxidant power
💡 Pro Tip
🌿 For all-natural DIY products without synthetic preservatives, Rosemary Extract is your best friend! Use it to extend the life of oils like jojoba, almond, and shea butter. Blend with Vitamin E (Tocopherol) for a synergistic antioxidant system.
👩🔬 Skin Type Compatibility
✔️ Suitable for all skin types
⚠️ Patch test recommended for ultra-sensitive skin due to concentrated actives
🧴 Formulation Ideas
1. Antioxidant Night Cream
Formulate a nourishing cream with shea butter, niacinamide, and Rosemary Extract to reduce free radical damage overnight. Ideal for dry and aging skin. Add a gentle emulsifier and keep the formulation below 40°C during the cool-down phase.
2. Natural Hair Growth Oil Blend
Combine rosemary extract with oils like castor, coconut, and argan. This creates a powerful scalp massage oil that promotes circulation, strengthens follicles, and protects oils from rancidity.
3. Gentle Facial Balm for Oily Skin
Use rosemary extract with lightweight esters like isopropyl myristate and jojoba oil. This balm soothes acne-prone skin and prevents ingredient degradation.
4. Herbal Shampoo for Dandruff-Prone Scalp
Incorporate rosemary extract in a surfactant base with tea tree and peppermint oils. It helps reduce microbial activity and supports scalp health.
5. Beard Oil with Natural Preservation
Craft a beard oil using rosemary extract to ensure extended shelf life while providing a fresh, herbal scent. Combine with Vitamin E for dual antioxidant action.
💧 Cosmetic Suitability:
Serums
⭐⭐⭐⭐☆ – Good
🟩🟩🟩🟩⬜ – Antioxidant boost for oily/acne-prone skin.
Creams & Lotions
⭐⭐⭐⭐☆ – Good
🟩🟩🟩🟩⬜ – Natural stabilizer and skin treatment.
Toners
⭐⭐⭐⭐☆ – Good
🟩🟩🟩🟩⬜ – Supports skin clarity and oil balance.
Face Masks
⭐⭐⭐⭐☆ – Good
🟩🟩🟩🟩⬜ – Antibacterial and antioxidant synergy in herbal masks.
Cleansers
⭐⭐⭐⭐☆ – Good
🟩🟩🟩🟩⬜ – Boosts purification and acne control.
Hair Masks
⭐⭐⭐⭐⭐ – Excellent
🟩🟩🟩🟩🟩 – Scalp soothing and hair-strengthening.
Deodorants
⭐⭐⭐☆☆ – Moderate
🟧🟧🟧⬜⬜ – Natural odor-neutralizing potential.
Eye Creams
⭐⭐☆☆☆ – Fair
🟧🟧⬜⬜⬜ – Not commonly used due to strong herbal profile.
Shampoos
⭐⭐⭐⭐⭐ – Excellent
🟩🟩🟩🟩🟩 – Great for oily scalp and hair growth blends.
Soaps
⭐⭐⭐⭐☆ – Good
🟩🟩🟩🟩⬜ – Antioxidant benefits in herbal soaps.
Conditioners
⭐⭐⭐⭐☆ – Good
🟩🟩🟩🟩⬜ – Boosts scalp and follicle nourishment.
Lip Balms
⭐☆☆☆☆ – Poor
🟥⬜⬜⬜⬜ – Not suitable due to herbal bitterness.
Body Butters
⭐⭐☆☆☆ – Fair
🟧🟧⬜⬜⬜ – Can boost oxidation stability in body butters.
Ointments
⭐⭐☆☆☆ – Fair
🟧🟧⬜⬜⬜ – Suitable in herbal balm recipes.
❓ FAQs
Q1: Is Rosemary Extract the same as Rosemary Essential Oil?
A1: No. Rosemary Extract is a botanical extract rich in antioxidants, while essential oil is volatile and used for fragrance or therapeutic effects.
Q2: Can I use it as a preservative?
A2: It is not a standalone preservative but enhances the efficacy of preservation systems by preventing oxidation.
Q3: Will it change the color or scent of my product?
A3: At higher concentrations, it may impart a slight green tint and herbal scent. Start with a small amount.
📂 Documentation
Upon request, we will provide.
Where Can You Safely Use Rosemary Extract
Discover how Rosemary Extract performs across different products — rated for safety, stability, and effectiveness.