INTRODUCTION

Cetpro DHHB is a synthetic oil soluble sunscreen agent that helps shield skin against UVA rays with peak absorption at 354 nm. Currently it is not an FDA-approved sunscreen agent in the US; however, it is an approved UV filter in many other markets, including the UK, EU, China, Australia, and Japan, at a 10% maximum concentration. Cetpro DHHB offers excellent photostability, it is considered superior to Avobenzone (another popular UVA spectrum sunscreen agent) in this regard and can be used alone or in tandem with other UV absorbers.