Ingredient Guide
Sodium Lactate
Also known as: Sodium Lactate, Lactic Acid Sodium Salt
All skin types
What It Is
The sodium salt of lactic acid. A naturally occurring NMF (Natural Moisturizing Factor) component that acts as an effective humectant.
What It Does
Draws and retains moisture in the skin. Part of the skin's own NMF — the biological hydration system that keeps the stratum corneum moist and flexible.
Best For
HydrationNMF supportSkin flexibility
Benefits
- Skin-identical humectant — mirrors what skin produces naturally
- Supports the skin's NMF alongside amino acids, PCA, and urea
- Very well tolerated
When to Be Careful
- No notable concerns at standard cosmetic concentrations
Commonly Found In
Exfoliating tonersNMF moisturizersHydrating serums
FAQs About Sodium Lactate
What is sodium lactate in skincare?
The sodium salt of lactic acid. As part of the skin's Natural Moisturizing Factor, it draws and retains moisture, contributing to a hydrated, flexible stratum corneum.