Rosemary leaf extract is a polyphenol-rich antioxidant botanical with anti-inflammatory potential.
Published topical work supports protection against oxidative damage, while reviews describe carnosic acid, carnosol and rosmarinic acid as key contributors. The strength of effect depends on extraction and standardization.
Usage & cautions
Botanical or fragrance-related sensitivity is possible depending on the extract.
Information approach
Consumer-friendly summaries are informed by established cosmetic ingredient references such as INCIDecoder and Paula’s Choice Ingredient Dictionary, while avoiding turning ingredient-level evidence into medical claims about the finished product.
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