Rosemary Leaf Extract ●
TL;DR. This ingredient is used mainly as an antioxidant and skin-conditioning botanical extract. In formulas, it helps slow oxidation in oils and butters while adding supportive plant-derived polyphenols.
What does Rosemary Leaf Extract do in a cosmetic formula?
This ingredient is used mainly as an antioxidant and skin-conditioning botanical extract. In formulas, it helps slow oxidation in oils and butters while adding supportive plant-derived polyphenols.
Is Rosemary Leaf Extract clean?
This ingredient is generally accepted in clean-beauty frameworks and is not a common restricted-list concern. Like many aromatic botanical extracts, it can bother very reactive skin at higher levels, so concentration and extract type matter.
Is Rosemary Leaf Extract sustainable?
This material is plant-derived, renewable, and expected to be readily biodegradable. Its footprint depends on farming practices and extraction method, with ethanol, glycerin, and carbon dioxide extraction generally aligning better than more intensive solvent systems.
Is Rosemary Leaf Extract COSMOS-approved?
It is permitted under COSMOS-natural and COSMOS-organic frameworks when produced with approved raw materials, extraction solvents, and processing methods. It fits Green Chemistry principles well when sourced from renewable crops and extracted with lower-impact solvents.
How does Rosemary Leaf Extract work chemically?
This material contains phenolic diterpenes such as carnosic acid and carnosol, along with polar polyphenols depending on the solvent system. Typical use is supplier-dependent, often around 0.05% to 1% for antioxidant support, and higher levels may affect odor, color, or sensory profile.
Last updated 2026-05-13