Potassium PCA

Potassium PCA

AKA “Potassium 5-oxo-L-prolinate, 4810-50-8, potassium pidolate, KALIDONE, EINECS 225-373-9, H004M3556Q, L-Proline, 5-oxo-, monopotassium salt, POTASSIUM L-PYROGLUTAMATE, DTXSID40197423”

Humectant

Ingredient Facts

Potassium pca

AKA: Potassium 5-oxo-L-prolinate, 4810-50-8, Potassium pidolate, KALIDONE, EINECS 225-373-9, H004M3556Q, L-Proline, 5-oxo-, Monopotassium salt, POTASSIUM L-PYROGLUTAMATE, DTXSID40197423

Humectant · Humectant · EWG: 1

Synthetic

Humectant

Amino Acid

Clean

The CIR Expert Panel concluded that PCA (i.e., 2-pyrrolidone-5-carboxylic acid), calcium PCA, magnesium PCA, potassium PCA, and sodium PCA are safe in cosmetics in the present practices of use and concentration described in this safety assessment. PCA and its salts should not be used in cosmetic products in which N-nitroso compounds can be formed.

Effective at 0.38%

Formula

C5H6KNO3

Mol. Weight

167.20

CAS #

4810-50-8

Form

Liquid

See origin →

Functions

Humectant

A moisture magnet. Pulls water from the air and deeper skin layers up to the surface to keep skin plump and hydrated.

Locks In Moisture

Traditional Use

Potassium salt of pyrrolidone carboxylic acid, a naturally occurring humectant found in skin. Developed in the 1970s as a synthetic moisturizing agent to mimic the skin's natural water-binding compounds.