Rosmarinus Officinalis Oleoresin ●
TL;DR. This ingredient is primarily an antioxidant for oil-containing formulas, helping slow rancidity and color or odor change in plant oils, balms, emulsions, and anhydrous products.
What does Rosmarinus Officinalis Oleoresin do in a cosmetic formula?
This ingredient is primarily an antioxidant for oil-containing formulas, helping slow rancidity and color or odor change in plant oils, balms, emulsions, and anhydrous products.
Is Rosmarinus Officinalis Oleoresin clean?
From a clean beauty perspective, it is generally well accepted and not a common restricted-list concern. Sensitivity is possible with fragrant botanical materials, and quality depends on controlled extraction and low residual solvent levels.
Is Rosmarinus Officinalis Oleoresin sustainable?
This material is plant-derived and usually used at very low levels, which supports a relatively light formula footprint. It is biodegradable, though sourcing quality can vary with agricultural practices and extraction method.
Is Rosmarinus Officinalis Oleoresin COSMOS-approved?
It is generally permitted under COSMOS-natural and COSMOS-organic when made from approved botanical raw materials and allowed extraction processes. It fits Green Chemistry well when sourced renewably, processed with lower-impact solvents, and used to extend the life of oxidation-prone oils.
How does Rosmarinus Officinalis Oleoresin work chemically?
This compound is a lipophilic botanical resin rich in antioxidant phenolic diterpenes such as carnosic acid and carnosol, with smaller amounts of volatile terpenes. Typical cosmetic use is about 0.02% to 0.2% in the oil phase, where it helps stabilize unsaturated lipids but can contribute color or a characteristic scent at higher levels.
Last updated 2026-05-13