Vitamin C As Absorbic Acid ●
TL;DR. This ingredient is a water-soluble antioxidant active used to support brighter-looking, more even-toned skin and to help limit oxidation in formulas.
What does Vitamin C As Absorbic Acid do in a cosmetic formula?
This ingredient is a water-soluble antioxidant active used to support brighter-looking, more even-toned skin and to help limit oxidation in formulas.
Is Vitamin C As Absorbic Acid clean?
From a clean beauty perspective, it is broadly accepted and not a common restricted-list concern. The main watchpoint is comfort, since effective low-pH formats and higher levels can feel sharp or stinging on sensitive skin.
Is Vitamin C As Absorbic Acid sustainable?
This material is commonly made through fermentation of plant-derived glucose followed by purification. It is readily biodegradable, has low environmental persistence, and does not raise major supply-chain concerns.
Is Vitamin C As Absorbic Acid COSMOS-approved?
It is permitted under COSMOS-natural and COSMOS-organic standards when produced and processed according to the standard’s requirements. It fits Green Chemistry reasonably well because it can come from renewable carbohydrate feedstocks and breaks down readily in the environment.
How does Vitamin C As Absorbic Acid work chemically?
The molecule is a small six-carbon, water-soluble lactone with an enediol group that readily donates electrons, which explains both its antioxidant activity and its instability. Typical leave-on use ranges from about 0.5% to 20%, with best performance in acidic systems around pH 2.5 to 3.5 and careful protection from oxygen, light, heat, and metal ions.
Last updated 2026-05-13