AMMONIUM SULFATE is graded A (Safe) by Expert·ING, based on COSING, FDA regulatory data.

AMMONIUM SULFATE

Safety grade: A

Ammonium sulfate is a salt compound commonly used in skincare and cosmetic products. It's the same chemical used in fertilizers and water treatment, but in cosmetics it helps control how thick or thin a product feels.

This ingredient adjusts the thickness and flow of cosmetic formulas, helping products achieve the right consistency so they spread smoothly and feel pleasant on the skin.

Graded using: COSING, FDA.

Last verified: May 26, 2026