FLUORESCENT BRIGHTENER 393 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

FLUORESCENT BRIGHTENER 393

Safety grade: A

This is a synthetic dye that makes products appear brighter and more luminous by reflecting light. It creates an optical brightening effect similar to how optical whiteners work in laundry detergents.

This ingredient is used as a colorant to enhance the visual brightness and radiance of cosmetic products, giving them a more luminous and appealing appearance.

Graded using: COSING.

Last verified: May 26, 2026

Other Cosmetic Colorant ingredients

CI 19140 — Grade A
CI 42090 — Grade A
CI 77891 — Grade A**
CI 77492 — Grade A
CI 17200 — Grade C
CI 77491 — Grade A
KAOLIN — Grade A
CI 15985 — Grade A