Erythorbic Acid

TL;DR. It functions mainly as an antioxidant and reducing agent, helping slow color changes and oxidative degradation in water-based formulas.

What does Erythorbic Acid do in a cosmetic formula?

It functions mainly as an antioxidant and reducing agent, helping slow color changes and oxidative degradation in water-based formulas.

Is Erythorbic Acid clean?

This ingredient has a low sensitization profile and is generally viewed as unproblematic in clean-beauty screening. The main quality consideration is supplier documentation for residual processing impurities rather than a routine restricted-list issue.

Is Erythorbic Acid sustainable?

This material is typically made from carbohydrate feedstocks, often via fermentation followed by chemical conversion. It is water-soluble and expected to biodegrade readily, with low concern for environmental persistence.

Is Erythorbic Acid COSMOS-approved?

It can align with COSMOS-natural when sourced from permitted renewable feedstocks and made through accepted processing, with confirmation needed from the supplier’s COSMOS documentation. From a Green Chemistry view, its fit is strongest when fermentation-based production, low-residue processing, and good biodegradability are demonstrated.

How does Erythorbic Acid work chemically?

The molecule is a water-soluble lactone with enediol chemistry, which makes it an effective electron donor in oxidation-reduction reactions. It is most useful in aqueous systems, performs best at acidic to mildly acidic pH, and is commonly paired with chelators or oxygen-control packaging to improve antioxidant performance.

Last updated 2026-05-15