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Potassium Sulfate

What Potassium Sulfate is & what it does

Potassium Sulfate is an inorganic mineral salt of potassium and sulfate. In cosmetics it is generally used in small amounts as a viscosity-adjusting or bulking agent, and salts of this type can also help set the ionic balance of a water phase. It is water-soluble and otherwise unremarkable in finished products. It appears in a few catalog formulas with no specific concerns flagged.

What is Potassium Sulfate?

Potassium Sulfate is an inorganic mineral salt of potassium and sulfate. In cosmetics it is used in small amounts as a formulation aid.

What does Potassium Sulfate do in skincare?

It is generally used as a viscosity-adjusting or bulking agent and can help set the ionic balance of a water-based formula. It does not have an active skin benefit of its own.

Is Potassium Sulfate safe?

It is generally considered safe at the small levels used in cosmetics, and no specific concerns are flagged for it here. It is water-soluble and otherwise unremarkable in finished products.

Sunscreens with Potassium Sulfate

We rate 3 sunscreens that contain it:

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