Sodium PCA
Also known as: Sodium Pyrrolidone Carboxylic Acid, PCA sodium salt
Natural amino acid derivative that draws moisture into skin and supports its natural hydration barrier.
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Get the appWhat it does
Sodium PCA is a component of skin's natural moisturizing factor (NMF) that acts as a powerful humectant, drawing water from the environment into the stratum corneum. It helps restore and maintain skin's moisture-binding capacity and supports the skin's natural protective barrier. Often used at 1-5% concentrations in hydrating formulas.
Benefits
- Intense hydration and moisture retention
- Supports skin's natural NMF
- Improves skin plumpness and elasticity
- Gentle, suitable for sensitive skin
- Non-irritating humectant alternative
Who it suits
- Dry and dehydrated skin
- Sensitive skin
- Barrier-compromised skin
- All skin types needing hydration
How to use
Use in serums, moisturizers, and hydrating toners at 1-5% concentration. Layer under heavier moisturizers to seal in hydration.
Pairs well with
Glycerin, Hyaluronic acid, Ceramides, Niacinamide
Be careful pairing with
none notable
Safety & cautions
Generally very well-tolerated and non-irritating. May feel slightly tacky at high concentrations; balance with other hydrating ingredients for optimal texture.
Educational information, not medical advice. Concentration and formulation change how an ingredient behaves.