What it is
Potassium chloride is a simple inorganic salt of potassium and chloride, supplied as a white crystalline solid. In cosmetic formulas it is used in small amounts to adjust viscosity, modify the behavior of certain thickeners and surfactant systems, and help stabilize emulsions. It contributes electrolytes that can influence the structure of water-based formulations.
Safety & warnings
Generally recognized as safe and well tolerated at the low concentrations used in cosmetics.
Origin & sourcing
Mineral-derived inorganic salt; obtained from natural deposits or produced industrially.
Questions everyone asks
Why is potassium chloride in sunscreen?
It is used in small amounts as a viscosity-adjusting and stabilizing salt that helps fine-tune the texture and stability of water-based formulas.
Is potassium chloride irritating?
At the low levels used in cosmetics it is generally well tolerated and considered non-irritating.