INCI · exfoliant · CIR review pending · used in 1 products
Malic Acid
Malic acid is an alpha-hydroxy acid (AHA) derived from apples, with the CAS number 97-67-6. It functions primarily as an exfoliant and buffering agent in cosmetic formulations. Like other AHAs, it works by gently lifting dead skin cells from the skin's surface to improve smoothness and freshness.
Evidence level
weakEWG score
—Comedogenic
—Category
exfoliant● Benefits
Malic acid can gently exfoliate dead skin cells, leaving skin smoother and more refreshed. However, one comparative study found it to be less effective than glycolic acid and lactic acid, ranking it alongside citric acid at the lower end of AHA effectiveness.
exfoliatingbrighteningsmoothing
● Cautions
As an AHA, malic acid may cause photosensitivity; general AHA precautions (e.g., sun protection) are advisable, though no specific cautions are stated in the source.
