HOLMIUM OXIDE is graded A (Safe) by Expert·ING, based on COSING regulatory data.

HOLMIUM OXIDE

Safety grade: A

Holmium oxide is a rare earth mineral compound that appears as a yellow powder. It's an inorganic material derived from the element holmium found in nature.

Holmium oxide is primarily used in cosmetics as a colorant and may provide optical or light-diffusing properties to enhance product appearance and performance.

Graded using: COSING.

Last verified: May 26, 2026