Antioxidant

Rosmarinus Dfficinalis (Rosemary) Leaf Extract

Rosmarinus Dfficinalis (Rosemary) Leaf Extract acts as a preservative, helping to prevent microbial growth and extend the shelf life of cosmetic products.
Generally Safe
This ingredient has a good safety profile based on available data.
Purpose

Function

Botanical antioxidant preservative and active from Rosmarinus officinalis (rosemary) leaves. Active constituents: carnosic acid and carnosol (diterpene phenols — primary chain-breaking antioxidants), rosmarinic acid (polyphenol — radical scavenger and anti-inflammatory), ursolic acid, and caffeic acid. Multiple antioxidant mechanisms: HAT (carnosic acid/carnosol), SET (rosmarinic acid), and chelation of pro-oxidant metal ions. ISO 16128 NI=1. Used as natural alternative to synthetic antioxidants (BHT, BHA) for product stabilisation and as anti-inflammatory skin active. Anti-microbial secondary activity (limited broad-spectrum efficacy vs synthetic preservatives).
Profile

Properties

Silicone
Silicone free
Malassezia
Safe
Fungal Acne
Safe
Details

Description

Rosmarinus Dfficinalis (Rosemary) Leaf Extract acts as a preservative, helping to prevent microbial growth and extend the shelf life of cosmetic products.

Reference

Identifiers

Category
Antioxidant
Updated
Apr 23, 2026

No registry identifiers available for this ingredient.