Snapshot
- Overview
- A sugar-derived acid that helps keep formulas fresh and stable.
- Category
- Preservative
- Type
- Chelating Agent
Galactaric Acid
Galactaric acid (mucic acid) is a sugar-derived dicarboxylic acid used in cosmetics as a chelating agent. It's included to bind trace metals and support preservative and color stability, though current cosmetic evidence is limited.
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Our take
Is Galactaric Acid a Good Ingredient?
It's Fair because it works primarily as a chelator, with limited clinical evidence for direct skin benefits beyond stabilizing the formula. Sensitive skin may experience mild stinging if the formula is more acidic or applied to compromised skin, which limits the rating.
What it does
Skin Benefits
Helps maintain product freshness and clarity by minimizing discoloration and off-odors, though consumer-facing skin benefits are indirect and evidence is limited. Can improve overall formula performance consistency over time.
Where you'll find it
Uses in Skincare & Cosmetics
Commonly added to water-based serums, toners, and shampoos as a metal-binding stabilizer to support shelf life. Also used in cleansers to help keep color and scent more consistent during use.
Before you use it
Safety
Generally low risk at typical chelating levels. May cause brief stinging on sensitive or barrier-impaired skin; patch testing is sensible. No specific cosmetic regulatory restrictions are commonly cited.
Products with Galactaric Acid
