Calcium PCA
A humectant from the skin's natural moisturizing factor. It draws in moisture and supports softness. Well tolerated.
Evidence by route
Topical application
A hydrating PCA salt. Safe.
- CIR Cosmetic Ingredient Review safety assessment
How to read tiers A–F
- BLimited evidence. One RCT or several controlled studies with limitations
Tolerability and safety
- Irritation potential
- Low
- Allergen risk
- Low
- Pregnancy
- Safe
- Suitable for
- Normal, Dry, Combination, Oily, Sensitive
About this ingredient
Calcium PCA is the calcium salt of pyrrolidone carboxylic acid (PCA), a component that is part of the skin's natural moisturizing factor. In a formula it acts as a humectant: it draws water into the stratum corneum and helps keep the skin soft and supple. It shows up in moisturizers, serums and products for dry skin. It has a solid basis as a humectant, because PCA is a molecule the skin itself uses to hold water. We are talking about a real surface-hydration effect, not empty promises. Even so it is a supporting active rather than a treatment, useful for everyday comfort. With topical use it has no systemic relevance, so you can use it during pregnancy and breastfeeding. Tolerance is very good: irritation and allergy are both low, and it suits sensitive skin. It does not dry the skin or add comedogenic load, so it works on any skin type.
Frequently asked questions
Is Calcium PCA safe during pregnancy?
Calcium PCA is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
What skin types is Calcium PCA for?
Calcium PCA suits: normal, dry, combination, oily, sensitive.
What is Calcium PCA and what does it do in cosmetics?
A humectant from the skin's natural moisturizing factor.
What's the INCI name for Calcium PCA?
The INCI name is Calcium PCA.
See Calcium PCA in a product composition right on the store page
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