What is PCA and why is it in skincare?

PCA (Pyrrolidone Carboxylic Acid) is a natural humectant found in healthy skin. It's used in skincare to attract and retain moisture, helping to keep the skin hydrated and support its natural barrier.

Is PCA suitable for all skin types?

Yes, PCA is generally well-tolerated by all skin types, including sensitive skin, because it is a component of the skin's own moisturizing system. It is particularly beneficial for dry and dehydrated skin.

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PCA

PCA, or Pyrrolidone Carboxylic Acid, is a naturally occurring component of the skin's Natural Moisturizing Factor (NMF). It is an excellent humectant, meaning it attracts and holds water, helping to keep the skin hydrated and supple. PCA also plays a role in maintaining the skin barrier function, which is crucial for protecting the skin from environmental stressors.

NoneHumectantEvidence: High

BenefitGood 3.2 / 4

Hydration

Texture

Soothing

Uv protection

RiskVery low 0 / 4

Rated by SpottyLabs' ingredient methodology, independent of brands.

What it helps with

Boosts skin hydration
Supports skin barrier function
Part of skin's natural moisturizing factor

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Products with PCA

UreaRepair PLUS Lotion 10% Urea

Score 4.7 / 5

The 6 Peptide Skin Booster Serum

Score 4.6 / 5

Body Lotion Fragrance Originale

Score 4.5 / 5

Bond Maintenance Clarifying Shampoo

Score 3.8 / 5

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Frequently asked questions

What is PCA and why is it in skincare?: PCA (Pyrrolidone Carboxylic Acid) is a natural humectant found in healthy skin. It's used in skincare to attract and retain moisture, helping to keep the skin hydrated and support its natural barrier.
Is PCA suitable for all skin types?: Yes, PCA is generally well-tolerated by all skin types, including sensitive skin, because it is a component of the skin's own moisturizing system. It is particularly beneficial for dry and dehydrated skin.