Pyrrolidone Carboxylic Acid

What is Pyrrolidone Carboxylic Acid?

Pyrrolidone Carboxylic Acid (PCA) is the blueprint from which your skin's natural hydration system is built—a key component of your skin's Natural Moisturizing Factor now recreated for skincare formulations. This amino acid derivative works as an incredibly efficient humectant, drawing and binding moisture to your skin. Think of it as the original architect of your skin's moisture balance, stepping in when natural levels become depleted. It's the skincare equivalent of restoring a historical building using the original materials and techniques—authentic, effective, and in perfect harmony with the existing structure. For those seeking deeply effective hydration that mirrors the skin's own mechanisms, PCA offers that perfect combination of powerful moisture attraction and natural compatibility that helps restore optimal hydration levels without disturbing your skin's delicate ecosystem.

Perfect For

Oily: Neutral effect on oily skin
Dry: Neutral effect on dry skin
Sensitive: Neutral effect on sensitive skin
Combination: Depends on specific formulation and application technique
Mature: Neutral effect on mature skin

Key Benefits

Ingredient Interactions

Works well with: most ingredients

Avoid combining with: depends on specific formulation

Notes: Compatibility depends on product formulation, pH, and concentration

References

Strength: Variable - See literature

Mechanisms:
• Mechanism of action depends on specific ingredient composition