INCI name

MAGNESIUM PCA

Magnesium PCA

The magnesium salt of pyrrolidone carboxylic acid.

What it is

Magnesium PCA is the magnesium salt of pyrrolidone carboxylic acid (PCA). CosIng lists it as a humectant and skin-conditioning agent.

Where it is used

Found in creams, serums, toners and hair products.

Limits of interpretation

The INCI list shows which ingredients are present, not how much of each. Above 1%, ingredients are listed in descending order of weight; below 1% the order is free.

Not to be confused with sodium PCA, which has a separate INCI name.

Functions

Humectant
Retaining and/or preserving the moisture in a product during use.
Skin conditioning
Maintaining the skin in good condition.

EU regulation

This ingredient is not listed in the annexes of Regulation (EC) No 1223/2009 in the CosIng data.

Products with this ingredient (40)

Check a full ingredient list