Ma
Magnesium Sulfate
Magnesium Sulfate
A mineral salt (Epsom salt) used in cosmetics mainly to thicken and stabilize water-in-oil emulsions.
What it does
Magnesium sulfate, the same compound as Epsom salt, is used in skincare as a viscosity and stability aid. In water-in-oil creams a small amount of this salt helps lock the emulsion together and control thickness, giving a more stable product. It is a formulation tool rather than a skin active in these products.
Also known as
epsom salt
This page is public and indexed on purpose (unlike profiles and drops, which are unlisted) — it’s the citation behind shared ingredient cards, and it should be findable.
Want more like this?
Get Drop, free. Every flag cites its source, the app tells you when your routine is complete, and it helps you simplify — instead of selling you more products.