Ingredients

Zinc PCA

Written by Reviewed by the SYNC editorial team Published Last reviewed Editorial standards

Zinc PCA — the zinc salt of pyrrolidone carboxylic acid (PCA), a multifunctional ingredient that combines zinc with a natural moisturizing factor found in skin. It is used to help balance the look of oiliness, provide light hydration, and support a clearer, more comfortable complexion.

Key points

  • Zinc PCA pairs zinc with PCA, a component of the skin's own natural moisturizing factor that helps bind water.
  • It is often included in formulas for oily and blemish-prone skin due to its ability to help regulate the appearance of excess sebum.
  • The ingredient also has mild soothing and skin-conditioning properties.
  • It is water-soluble and commonly found in toners, serums, and lightweight moisturizers.

Frequently asked

What skin types benefit from zinc PCA?

It is especially popular for oily, combination, and blemish-prone skin because it helps balance the look of shine while providing light hydration.

Does zinc PCA hydrate the skin?

Yes, the PCA portion is a natural moisturizing factor that helps skin bind water, offering lightweight hydration alongside its oil-balancing benefits.

Related topics

This is a foundational entry in the SYNC Skin Encyclopedia and is expanded over time. Educational information only — not medical advice.

Encyclopedia

Further reading

This entry was written and checked against the sources below. They are published by clinical and scientific bodies, they are listed most readable first, and each one opens in a new tab. They are background for the whole entry rather than footnotes to individual sentences.

  1. PCA - Cosmetics Info CosmeticsInfo Regulatory and safety cosmeticsinfo.org
  2. Safety Assessment of PCA (2-Pyrrolidone-5-Carboxylic Acid) and Its Salts as Used in Cosmetics Cosmetic Ingredient Review Regulatory and safety cir-safety.org
  3. Safety Assessment of PCA and Its Salts as Used in Cosmetics Cosmetic Ingredient Review Regulatory and safety cir-safety.org
  4. Zinc - Consumer NIH Office of Dietary Supplements Clinical guidance ods.od.nih.gov
  5. Zinc - Health Professional Fact Sheet NIH Office of Dietary Supplements Clinical guidance ods.od.nih.gov
  6. Moisturizers StatPearls (NCBI Bookshelf) Reference text ncbi.nlm.nih.gov

SYNC does not publish medical advice. Nothing here replaces a consultation with a doctor or a pharmacist about your own skin.