Acetic acid is a colorless organic compound with a distinctive sour taste and pungent smell. In cosmetics, it is primarily used as a pH adjuster to help maintain the desired acidity level of a product. It can also have mild antimicrobial properties.
NonePH adjusterVeganEvidence: High
BenefitNone 0 / 4
RiskModerate 1.5 / 4
Irritation
Sensitization
Systemic exposure
Rated by SpottyLabs' ingredient methodology, independent of brands.
Things to watch
Can be irritating in high concentrations
May cause skin dryness
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Vinegar is typically a dilute solution of acetic acid, usually around 5-8%. In cosmetic formulations, acetic acid is used in much lower, controlled concentrations.
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