Asorbic Acid ●
TL;DR. This ingredient is primarily used as an antioxidant active and reducing agent in skin care, where it helps address visible dullness and uneven tone. It can also help protect formulas from oxidation, although it is itself oxidation-prone.
What does Asorbic Acid do in a cosmetic formula?
This ingredient is primarily used as an antioxidant active and reducing agent in skin care, where it helps address visible dullness and uneven tone. It can also help protect formulas from oxidation, although it is itself oxidation-prone.
Is Asorbic Acid clean?
This ingredient is generally well accepted in clean-beauty frameworks and has no major restricted-list friction. At low pH or higher use levels, it can cause stinging or irritation for some users, especially in leave-on products.
Is Asorbic Acid sustainable?
This material is typically made from carbohydrate feedstocks through fermentation and chemical conversion steps. It is water-soluble, readily biodegradable, and not associated with environmental persistence concerns.
Is Asorbic Acid COSMOS-approved?
It is permitted under COSMOS-natural and COSMOS-organic standards when the source and processing route meet standard requirements. It aligns well with Green Chemistry principles because it can be made from renewable feedstocks and has favorable biodegradability.
How does Asorbic Acid work chemically?
The molecule is a small water-soluble lactone with an enediol structure, which explains its strong reducing and antioxidant behavior. In leave-on products it is often used around 5% to 20% at acidic pH, commonly below 3.5, and stability improves with low oxygen exposure, opaque packaging, chelators, and limited metal ion contact.
Last updated 2026-09-01