Polylactic Acid
AKA “Polylactic Acid”
Synthetic
Ingredient Facts
Polylactic acid
Synthetic · Film Forming · EWG: 1
Plant-Derived Synthetic
Occlusive
Skin Conditioner
Chemical Exfoliant
Synthetic
Clean
A gentle exfoliant derived from lactic acid that helps remove dead skin cells and smooth skin texture.
CAS #
9051-89-2
Form
Liquid
See origin →
Functions
Abrasive
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Film Forming
Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
Supports cell turnover
Draws water to skin
Smooths skin texture
Traditional Use
Developed in the 1980s-1990s as a biodegradable polymer derived from corn or sugarcane fermentation. Used in modern skincare as a gentle exfoliant and in anti-aging products to stimulate collagen production.
Skin Types
●all-skin-types, gentle
Best For
Uneven Texture
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
Verified Feb 2026
Data: CosIng · EWG · CIR