active

Lactic Acid(plant derived)

Also known as LacticAcid
INCI: LACTIC ACID
CAS 50-21-5
Lactic Acid(plant derived) is a humectant that helps attract and retain moisture in the skin, keeping it hydrated and supple.
Generally Safe
This ingredient has a good safety profile based on available data.
Purpose

Function

AHA exfoliant (MW 90 Da) with humectant properties. Slightly larger than glycolic acid producing gentler exfoliation. Disrupts corneocyte cohesion and stimulates ceramide biosynthesis (L-isomer). At lower concentrations acts as a skin-identical humectant and Natural Moisturising Factor (NMF) component. Component of Jessner's solution used as a superficial-to-medium peel primer.
Profile

Properties

Silicone
Silicone free
Malassezia
Safe
Fungal Acne
Safe
Details

Description

Lactic Acid(plant derived) is a humectant that helps attract and retain moisture in the skin, keeping it hydrated and supple.

Reference

Identifiers

CAS Number
50-21-5
INCI
LACTIC ACID
Category
active
Updated
Apr 2, 2026