Allowed in EU

Potassium Pca

A cosmetic ingredient used as humectant in skincare, haircare, and personal-care products sold in the European Union.

What is it?

Potassium 5-oxo-L-prolinate

What does it do?

Potassium Pca is listed in the EU cosmetic ingredient inventory with the following declared functions:

  • Humectant

    draws moisture from the air or deeper skin layers to the surface, helping skin retain water

EU regulatory status

Potassium Pca is allowed for use in cosmetic products in the European Union under Regulation 1223/2009. It is not subject to a specific Annex restriction at the time of writing.

Frequently asked questions

What is Potassium Pca?

Potassium Pca is a cosmetic ingredient catalogued in the EU CosIng database. Potassium 5-oxo-L-prolinate

Is Potassium Pca allowed in cosmetics in the EU?

Yes. Potassium Pca is allowed for use in cosmetic products in the EU under Regulation 1223/2009.

What does Potassium Pca do in cosmetic products?

Potassium Pca is declared in the EU cosmetic ingredient inventory with these functions: humectant.

What is the CAS number of Potassium Pca?

The CAS (Chemical Abstracts Service) number for Potassium Pca is 4810-50-8.

Related ingredients

Source: EU CosIng database (European Commission). This page is derived from public-sector information published by the European Commission. · Last updated: 15/10/2010