Sodium PCA
Natural Moisturizing Factor
AStrong clinical evidence (multiple RCTs)Safety: Safe
Chemical Function
Part of skin's natural moisturizing factor; humectant.
Scientific Evidence
Studies show strong hydration and barrier support as part of the NMF.
Quality of EvidenceStrong
Interactions
Pairs with glycerin and hyaluronic acid; gentle.
Pro-Aging Relevance
Restores the natural moisturizing factor that fades with age.
The Science Behind Sodium PCA
Sodium PCA is part of the skin's own moisturizing factor. It binds water and keeps the surface supple — valuable as mature skin loses its natural hydration.
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