Also known as: 2-Hydroxypropane-1,2,3-Tricarboxylic Acid
Citric acid is an AHA derived from citrus fruits, primarily used as a pH adjuster and chelating agent in cosmetic formulations. At low concentrations it adjusts pH rather than exfoliating. At higher concentrations it provides mild exfoliation. It also chelates metal ions, improving preservative efficacy and product stability.
Comedogenicity ratings are based on the rabbit ear assay model. Individual skin responses vary. See our article on comedogenicity ratings for context.
The Ingredient Journal
Every week we break down one ingredient in depth — the science, the claims, and what the label is not telling you.
We use analytics cookies to understand how readers find and use our content. No advertising cookies. No third-party tracking. Privacy Policy