Diethylaminohydroxybenzoylhexylbenzoate DHHB CAS 302776-68-7 is a photostable broad-spectrum UV filter that effectively absorbs UVA and UVB rays, making it an important ingredient in sunscreens and other sun protection products . Its ability to provide long-lasting UV radiation protection makes it a great addition to any skin care routine, especially for those who spend long periods of time outdoors.