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Ingredient directory

Rosmarinus Officinalis Flower/leaf/stem Extract

Rosmarinus Officinalis Flower/Leaf/Stem Extract is a versatile botanical ingredient renowned for its potent antioxidant, anti-inflammatory, and antimicrobial properties. It actively protects the skin from environmental stressors, aids in soothing irritation, and helps maintain a balanced, healthy complexion.

Directory entry · Individual source review pending

This profile is awaiting an individual source review. Treat its ratings, dose estimates and compatibility labels as provisional; they are not medical advice or proof of a finished product’s effects.

Antioxidant Anti-inflammatory Antimicrobial Soothing Skin Conditioning Toning Astringent Anti-aging Perfuming

Science

This extract functions as a powerful antioxidant, shielding the skin from free radical damage and environmental aggressors, which contributes to preventing premature aging and enhancing skin texture and tone. Its anti-inflammatory action, attributed to compounds like carnosol and carnosic acid, effectively reduces redness and irritation by inhibiting pro-inflammatory mediators such as nitric oxide (NO) and downregulating IL-1β and TNF-α. Furthermore, it exhibits antimicrobial capabilities, assisting in controlling the proliferation of skin microorganisms, alongside offering skin conditioning, toning, and astringent benefits. The extract also helps defend against pollution-induced oxidative damage by inhibiting MMP-9 and may provide a degree of protection from UVB radiation.


Research

Medium confidence
Effective range N/A
Optimal

N/A

Key findings

  1. 01 A hydroalcoholic extract demonstrated 86% inhibition of fungal growth against Microsporum gypseum and Trichophyton rubrum.

Transparency

Not commonly dusted

The Formula

Solubility
Water
Optimal pH 4.5 – 5.5
0 7 14

Conflicts

  • Individuals with known fragrance allergies
  • Formulations not adequately designed to be non-sensitizing

Safety

CIR Status
Safe as used
Sensitization risk Moderate

The Cosmetic Ingredient Review (CIR) Expert Panel deems Rosmarinus Officinalis Flower/Leaf/Stem Extract safe for cosmetic use, provided formulations are non-sensitizing. This specific combined extract has no stated maximum concentration for leave-on products. The FDA also recognizes Rosemary as Generally Recognized As Safe (GRAS) for food additive use. However, due to its aromatic components, a patch test is recommended for individuals with sensitive skin or fragrance allergies to assess potential sensitization.


Your Skin

Yes Normal
No Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Valuable

This multi-functional botanical extract offers significant antioxidant, anti-inflammatory, and antimicrobial benefits, making it a valuable addition for promoting overall skin health and resilience across various skin types.


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