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humectant

Sodium PCA

Generally safe·Strong evidence

Sodium PCA is a natural component of skin's own moisturizing factor and is used in cosmetics as a humectant to help skin hold onto water. It has an extensive history of safe use with no meaningful irritation or sensitization signal.

Questions

What does sodium PCA do?
Sodium PCA is a natural humectant that draws water into the skin. It's derived from amino acids and is part of the skin's natural moisture-binding system.
Is sodium PCA safe?
Published reviews show no safety concerns with sodium PCA in cosmetics. It's gentle and well-tolerated, including on sensitive skin.

Products with Sodium PCA

References

Cosmetic information for general education, not medical advice. A verdict is a reading of the published evidence, never a guarantee for your skin: any ingredient can irritate someone, so patch test new products and see a professional if you react. Concern is graded on cited evidence, never on hazard-score lists. See how we score.