INCI · other · CIR review pending · used in 2 products
Acetic Acid
Acetic acid is the organic acid found in vinegar, identified by CAS# 64-19-7. It is used in cosmetic formulations primarily as a buffering and masking agent to help set and stabilize the pH of a formula. It also possesses some disinfecting properties.
Evidence level
weakEWG score
—Comedogenic
—Category
other● Benefits
In small amounts, acetic acid helps maintain the correct pH of cosmetic formulas, which supports overall product stability and skin compatibility. It also has mild disinfecting properties.
buffering
● Cautions
Can be a skin irritant and drying when used in larger amounts; safe use in cosmetics is generally limited to small, pH-adjusting concentrations.
