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Rosemary (Salvia rosmarinus, formerly Rosmarinus officinalis) is one of the most versatile and well-researched botanicals in cosmetic science. Its rich profile of bioactive compounds — including rosmarinic acid, carnosic acid, ursolic acid, and flavonoids — delivers exceptional antioxidant, anti-inflammatory, antimicrobial, and scalp-stimulating properties that make it a staple active across skincare and haircare formulations.
This brown liquid extract delivers the key bioactive compounds of Salvia rosmarinus in a ready-to-use, water-soluble form for direct incorporation into the water phase of serums, toners, scalp treatments, and anti-aging formulations.
Professional cosmetic ingredient — not a finished product.
| INCI Name | Rosmarinus Officinalis Leaf Extract |
| Botanical Name | Salvia rosmarinus (syn. Rosmarinus officinalis) |
| Common Names | Rosemary, Garden Rosemary |
| Key Actives | Rosmarinic Acid, Carnosic Acid, Ursolic Acid, Flavonoids |
| Appearance | Brown liquid |
| Solubility | Water-soluble |
| Recommended Usage Rate | 1–10% (2–5% typical) |
| Incorporation Phase | Water phase or cool-down (below 40°C) |
| pH & Shelf Life | Refer to supplier CoA/TDS |
| Grade | Cosmetic Grade — External Use Only |
All products sold are cosmetic grade. For external use only. Intended for cosmetic and personal care formulations.
Add Rosemary Brown Liquid Extract to the water phase or at cool-down (below 40°C) at 1–10%. For most serums and scalp treatments, 2–5% is the typical effective range. Avoid prolonged exposure to high heat to preserve heat-sensitive rosmarinic acid and flavonoids. Use a broad-spectrum preservative system in all water-containing formulations.
Store tightly closed in a cool, dark place away from heat and direct light. Refer to your supplier's CoA for confirmed shelf life.
I formulated a beautiful Mangosteen & Astaxanthin glaze with it! Perfect addition, and gentle enough for sensitive skin.
A hard to find, specialty ingredient that adds natural silkiness to any formulation!
Good Material. I used it for my Skin Care Formulation, and blends well with other materials.
Great
Using this in my DIY oil-based lotion to make it less greasy and it really does do the job intended for! Happy with the purchase
Good Material. I used it for my Skin Care Formulation, and blends well with other materials.
Using this in my DIY oil-based lotion to make it less greasy and it really does do the job intended for! Happy with the purchase
Using it in my DIY lotion and so far so good! I like the smell and consistency.
Looked everywhere for powder, not liquid. Love it!
