POTASSIUM IODIDE is graded A** (Safe) by Expert·ING, based on COSING, FDA regulatory data.

POTASSIUM IODIDE

Safety grade: A**

Potassium iodide is a salt compound containing iodine, a mineral element known for its germ-fighting properties. It's commonly used in small amounts in personal care products to help prevent bacterial growth and keep products fresh.

This ingredient works as an antimicrobial agent to inhibit the growth of bacteria and microorganisms in cosmetic formulations, helping to preserve the product and maintain its safety.

Graded using: COSING, FDA.

Last verified: May 26, 2026