magnesium sulfate: Epsom salts. inorganic salt with the formula MgSO 4 (H 2 O) x where 0≤x≤7. Safe for fungal acne

A helper ingredient that is used as a bulking and viscosity controlling agent. It is also an emulsion stabilizer in water-in-oil emulsions, where water droplets are dispersed in the continuous oil phase and not the other way round.

It can also be used as a heat generating agent in water-less formulas as it has an instant heat-generating chemical reaction with water.