INCI name

ZINC PCA

Zinc PCA

A zinc salt of pyrrolidone carboxylic acid.

What it is

Zinc PCA combines zinc with PCA, a component of the skin's natural moisturising factor. It is used as a skin- and hair-conditioning ingredient.

Where it is used

Found in products for oily or blemish-prone skin and in shampoos.

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.

Functions

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

EU regulation

EU · Annex III, entry 24Water-soluble zinc salts with the exception of zinc 4- hydroxy-benzene sulphonate (entry 25 of Annex III)
Product type
(a) Toothpaste intended for users above 1 year of age (b) Toothpaste intended for children between 6 months and 1 year of age (c) Mouthwash intended for users above 6 years of age (d) Other products
Maximum concentration
(a) 1 % (as zinc) (b) 0,72 % (as zinc) (c) 0,1 % (as zinc) (d) 1 % (as zinc)
As of
3 November 2026 · (EU) 2026/909

Products with this ingredient (208)

Check a full ingredient list