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Ingredient guide
sodium pyrrolidone carboxylate
In short
Sodium Pyrrolidone Carboxylate, also known as sodium PCA, is a strong humectant that draws water into the skin. It’s a natural moisturising factor component and is very well tolerated.
Reviewed against published evidence · editorially independent · no brand pays for placement
Works for
Hydration
Skin type
Dry · Sensitive
Best used
Anytime
What it is
Alternate INCI name for sodium PCA, a natural moisturising factor component. Highly hygroscopic and well tolerated on sensitive skin.
Also found as
Related
Where to find it
Paula's Choice Omega+ Complex Moisturizer
Kiehl's Ultra Facial Cream
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Common questions
It boosts hydration and helps the skin feel soft, plump, and comfortable.
Yes, it’s gentle and widely used in formulas designed for sensitive or easily dehydrated skin.
You’ll find it in toners, serums, and moisturisers focused on replenishing hydration.
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Personal guidance only · For clinical concerns, see a dermatologist.