Rosemary Extract

• 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

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.

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

• 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

🌿 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.

✔️ Suitable for all skin types

⚠️ Patch test recommended for ultra-sensitive skin due to concentrated actives

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.

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.

Product evaluation

Review the specifications, supplied grade, intended use and compatibility of Rosemary Extract before ordering for production. Test a small quantity in the actual application and document the result before scaling.

Quality control

Inspect the received batch for expected appearance, odor, texture, packaging condition and labeling. Keep supplier and batch records, use accurate measurements, and retain a reference sample when the material is used commercially.

Storage and responsible use

Store tightly closed in a clean, cool and dry location away from direct sunlight. Follow the current supplier instructions and all safety, labeling and regulatory requirements that apply to the intended finished product.