Loved
PCA
Hydrating
These ingredients help hydrate the skin by either drawing in moisture or preventing it from escaping. They’re often used to keep skin feeling soft, smooth, and well-balanced.
Explained
PCA is derived from amino acids and is naturally found in our skin's barrier.
As a humectant, PCA helps draw and hold moisture to the skin. Studies show it is effective at helping the skin stay hydrated long-term.
See all 823 products with PCA
Users who like it
98%
Users who avoid it
2%
What it does
Humectant
A substance that promotes retention of moisture.
Moisturising
To add or restore moisture
Alternative names
Pyrrolidone Carboxylic Acid
Prevalence
Less common
Percentage of products that contain it
0.9%
Top categories
Treatments
Cleansers
Moisturizers
Position
Predominant list placement
Bottom 50%
References
Products with PCA
CosIng Data
CosIng ID
77186
INCI Name
PCA
INN Name
pidolic acid
EC #
 202-700-3
All Functions
Humectant, Moisturising
