Diethylamino Hydroxybenzoyl Hexyl Benzoate

If sunscreen formulas were a band, this one would be the quiet specialist handling the high-stakes stuff backstage. Diethylamino Hydroxybenzoyl Hexyl Benzoate is a modern UV filter built for UVA protection, especially the longer UVA rays that sneak deeper into the skin and are linked to premature aging. It’s often known for doing its job without being dramatic: no white cast, no heavy sunscreen smell, and no tendency to fall apart in sunlight, which is kind of a big deal for a UV filter.

What makes it interesting is its focus on the UVA1 range, roughly 320–400 nm, with peak absorption around 354 nm. In plain English, that means it helps cover the wavelengths that are especially associated with collagen breakdown and photoaging. It’s also notably photostable, so it doesn’t degrade quickly when exposed to light. That’s one reason formulators like pairing it with other UV filters: it can help build broader, more reliable protection in a sunscreen formula.

It’s used at up to 10% in many markets, and you’ll often find it in European and Asian sunscreens rather than US ones, simply because sunscreen approval rules differ a lot by region. Don’t let the mouthful of a name intimidate you; this ingredient has a pretty straightforward job. It helps your sunscreen defend your skin against the kind of UVA damage that shows up slowly, like uneven tone, loss of firmness, and those fine lines nobody invited.

So if you see this one on a label, think serious UVA protection, especially for products marketed as high-performance or daily anti-aging sunscreens. It’s one of those ingredients that doesn’t need to be flashy to be useful, which, honestly, is a very respectable skincare personality trait.

Diethylamino Hydroxybenzoyl Hexyl Benzoate is a new generation, chemical sunscreen agent (not available in the US due to impossible FDA regulations) that's designed for high UVA protection and high photostability. It gives sun protection in the whole UVA range (320-400 nm) with peak protection at 354nm. It can be used up to 10% worldwide except for the US and Canada.