Rosemary

TL;DR. This ingredient is used mainly as an antioxidant botanical and aromatic skin-conditioning additive. It can help slow oxidation in oil phases while contributing a herbal scent profile.

What does Rosemary do in a cosmetic formula?

This ingredient is used mainly as an antioxidant botanical and aromatic skin-conditioning additive. It can help slow oxidation in oil phases while contributing a herbal scent profile.

Is Rosemary clean?

From a clean-beauty perspective, this ingredient is generally accepted, but its fragrant constituents can be sensitizing for some users, especially when oxidized. Allergen labeling may apply when certain fragrance components exceed regulatory thresholds.

Is Rosemary sustainable?

This material is plant-derived and generally biodegradable, with impacts tied to farming practices, irrigation, and extraction method. Steam distillation and solvent or CO2 extraction are common, with solvent choice affecting its Green Chemistry profile.

Is Rosemary COSMOS-approved?

It is generally permitted under COSMOS-natural and COSMOS-organic when sourced and processed through allowed physical or approved extraction methods. It aligns reasonably well with Green Chemistry when renewable feedstock, lower-impact extraction, and readily biodegradable fractions are used.

How does Rosemary work chemically?

This material is a complex botanical mixture that may contain phenolic diterpenes, phenolic acids, and volatile terpenes, depending on whether it is supplied as an extract or aromatic fraction. Antioxidant extracts are often used at low levels in oil-containing formulas, while aromatic fractions require attention to oxidation, allergen disclosure, and air-tight packaging.

Last updated 2026-05-13