Humectants
Sodium PCA
It supports natural-moisturizing-factor stories and water binding while potentially affecting tack and electrolyte-sensitive thickeners.
- INCI
- SODIUM PCA
- CAS
- 28874-51-3
- Also known as
- sodium pyrrolidone carboxylate · sodium 2-pyrrolidone-5-carboxylate
- Function
- Humectants
Ingredient answer
What is Sodium PCA?
Sodium PCA is the sodium salt of pyrrolidone carboxylic acid used as a highly water-compatible humectant in skin and hair care.
Formulation behavior
How it works inside a formula
Check the supplied solids and preservative system, then evaluate ionic load, viscosity, sensory balance, and package stability.
Where it appears
Common product contexts
- hydrating serums
- lotions and creams
- hair conditioners
Practical caution
What to keep in view
Balance the level with climate, sensory goals, and the rest of the water-binding system.
Take the ingredient into a working formula.
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