The menthyl ester of pyroglutamic acid, used as a humectant and skin-conditioning ingredient.
What it is
Menthyl PCA is the ester of menthol and PCA (pyrrolidone carboxylic acid, also called pyroglutamic acid). CosIng lists it as a humectant and skin-conditioning ingredient.
Where it is used
Found in a small number of products, such as skin care and hair care 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.
Two CAS numbers are listed because the name covers the esters of both the L- and the D-form of PCA.
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 (6)
- Revolution Beauty Makeup Advent Calendar 2025 · Revolution
- Airbrush Flawless Foundation 8 Neutral: Full-coverage Matte Foundation · Charlotte Tilbury
- Airbrush Flawless Brighten & Set Kit · Charlotte Tilbury
- Airbrush Flawless Perfect, Mattify & Set Kit: Matte Foundation & Setting Spray · Charlotte Tilbury
- Dexpantonne Aloe Vera Gel + Vitamin E · Dexpantonne
- Veino confort gel · Laboratoires Yves Ponroy

