Magnesium 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
This ingredient is the magnesium salt of PCA (Pyrrolidone Carboxylic Acid). It is a great skin hydrator for the top layers of skin.
PCA is a natural humectant, meaning it draws water from the air to your outer layer of skin.
One study found magnesium ions improved skin hydration in the outer layer of skin, or the stratum corneum. However, it did not improve TEWL, or the transepidermal water loss. The TEWL is an indicator of how healthy your skin barrier function is. This study primarily looked at healthy skin with intact skin barrier.
See all 210 products with Magnesium PCA
What it does
Humectant
A substance that promotes retention of moisture.
Skin Conditioning
To hydrate and soften skin
Prevalence
Less common
Percentage of products that contain it
0.2%
Top categories
Treatments
Moisturizers
Cleansers
Position
Predominant list placement
Top 50%
References
Products with Magnesium PCA
CosIng Data
CosIng ID
35112
INCI Name
MAGNESIUM PCA
EC #
 227-392-8
All Functions
Humectant, Skin Conditioning
