Ketoglutaric Acid

TL;DR. This ingredient is used mainly as a skin-conditioning organic acid and pH adjuster, helping set formula acidity while contributing a mild antioxidant-support role.

What does Ketoglutaric Acid do in a cosmetic formula?

This ingredient is used mainly as a skin-conditioning organic acid and pH adjuster, helping set formula acidity while contributing a mild antioxidant-support role.

Is Ketoglutaric Acid clean?

Clean-beauty frameworks generally do not flag it as a restricted ingredient, and it is expected to be well tolerated at appropriately buffered, low-use levels. Like other small organic acids, it can sting or irritate when a formula is too acidic or used at higher concentrations.

Is Ketoglutaric Acid sustainable?

This material can be made by fermentation from carbohydrate feedstocks or by chemical synthesis, so sourcing depends on the supplier. It is water soluble, not expected to bioaccumulate, and is readily metabolized and biodegradable in biological systems.

Is Ketoglutaric Acid COSMOS-approved?

It is permitted under COSMOS-natural and can be used in COSMOS-organic products when the grade and processing route meet natural-origin and processing requirements. From a Green Chemistry view, renewable fermentation routes and high biodegradability are strong positives, while petrochemical synthesis is less aligned.

How does Ketoglutaric Acid work chemically?

The molecule is a five-carbon dicarboxylic acid with a ketone group, making it water soluble, acidic, and reactive with bases and salts in formulation. Public cosmetic use-level data are limited, so formulation decisions usually center on buffering, final pH, and compatibility with other acids, electrolytes, and sensitive actives.

Last updated 2026-05-14