Magnesium PCA

Magnesium PCA

AKA “Magnesium pyrrolidone carboxylate, Magnesium 2-oxopyrrolidine-5-carboxylate, 5819-47-6, UNII-S88743157Z, EINECS 289-082-9, Bis(5-oxo-DL-prolinato-N1, O2)magnesium, 85994-32-7, S88743157Z, EINECS 227-392-8, Magnesium L-pidolate”

Humectant

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Ingredient Facts

Magnesium pca

AKA: Magnesium pyrrolidone carboxylate, Magnesium 2-oxopyrrolidine-5-carboxylate, 5819-47-6, UNII-S88743157Z, EINECS 289-082-9, Bis(5-oxo-DL-prolinato-N1, O2)magnesium, 85994-32-7, S88743157Z, EINECS 227-392-8, Magnesium L-pidolate

Humectant · Humectant · EWG: 1

Synthetic

Humectant

Skin Conditioner

Clean

Magnesium 2-oxopyrrolidine-5-carboxylate

Formula

C10H12MgN2O6

Mol. Weight

280.52

CAS #

5819-47-6

Form

Powder

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.

Skin Conditioning

A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.

Locks In Moisture

Traditional Use

A modern compound combining magnesium with pyrrolidone carboxylic acid, developed in the late 20th century. Created as a skin-conditioning agent to improve moisture retention in contemporary cosmetic formulations.