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

HYDROXY OXOBENZOXATHIOL

Safety grade: A

This is a synthetic chemical compound created in laboratories that is used in skincare products. It works by helping to tighten and refine the appearance of skin.

This astringent ingredient is used to temporarily tighten skin, reduce the appearance of pores, and help control excess oil on the skin's surface.

Graded using: COSING.

Last verified: May 26, 2026