Diethylamino Hydroxybenzoyl Hexyl Benzoate (DHHB) is a modern, chemical UVA filter with an absorption range of 320 to 400 nm. DHHB provides reliable protection against long-wave UVA radiation—a major cause of premature skin aging—and, when combined with effective UVB filters, further enhances SPF performance. DHHB is oil-soluble and is ideal for long-lasting sunscreen formulations.(1)