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Ammonium

What Ammonium is & what it does

Ammonium on an ingredient label generally refers to an ammonium-based salt or pH-related component rather than a single defined cosmetic active, and the exact identity depends on the counter-ion in the full INCI name. In formulation, ammonium compounds are commonly used for pH adjustment, buffering, or as part of surfactant and thickening systems. It is listed in a small number of products here. No concerns are flagged in this data.

What is Ammonium on an ingredient label?

Ammonium usually refers to an ammonium-based salt or pH-related component rather than a single defined active, and its exact identity depends on the full INCI name and counter-ion. It is a common formulation helper.

What does Ammonium do in a formula?

Ammonium compounds are generally used for pH adjustment, buffering, or as part of surfactant and thickening systems. They are not UV filters.

Is Ammonium safe?

No concerns are flagged in this data, and ammonium-based formulation ingredients are generally considered well tolerated at the levels used. The specific compound behind the name is best read from the full ingredient list.

Sunscreens with Ammonium

We rate 4 sunscreens that contain it:

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