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Sodium Sulfate

What Sodium Sulfate is & what it does

A mineral salt used to adjust viscosity and as a processing aid. It helps control the texture and consistency of formulas.

Is Sodium Sulfate safe in skincare?

Sodium Sulfate is a widely used mineral salt that serves as a bulking, viscosity-controlling, and formulation aid in cosmetics. It is generally regarded as well tolerated at the levels used in skincare and sunscreen products. As with any ingredient, very high concentrations could be drying for some people, so its role is usually a minor, supporting one.

What does Sodium Sulfate do in skincare?

Sodium Sulfate is mainly used to adjust the thickness and texture of a formula and to act as a bulking agent. It can help control viscosity in both liquid and powder products. It does not provide an active skincare benefit on its own and is considered a functional, supporting ingredient.

Is Sodium Sulfate natural or synthetic?

Sodium Sulfate occurs naturally as a mineral and can also be produced synthetically or as a by-product of industrial processes. The cosmetic grade used is a purified salt, so the source can be either natural or manufactured. Functionally the purified ingredient is the same regardless of origin.

Sunscreens with Sodium Sulfate

We rate 29 sunscreens that contain it, showing the top 10 by overall score:

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