Ingredient dictionary

Diethylamino Hydroxybenzoyl Hexyl Benzoate

Also listed as: DHHB

A UVA-blocking organic sunscreen filter. It is an oil-soluble ingredient that absorbs ultraviolet A light before it reaches the skin. It is on the label of 35 products in our library. Checked against our library November 6, 2026.

The catch: chemical UV filters like this one are worth checking if you have very sensitive skin or want a mineral-only sunscreen.

Chemical UV filters. Very sensitive skin, and people who want a mineral-only sunscreen, check for these.

What Diethylamino Hydroxybenzoyl Hexyl Benzoate does

Absorbs UVA rays
Pairs with UVB filters in sunscreens
Helps the formula stay stable in sunlight

DHHB is a synthetic ingredient, made in a lab from chemical building blocks. It belongs to the family of organic UV filters, which work by absorbing ultraviolet light rather than reflecting it.

Formulators use it because it targets UVA rays, the longer wavelength that reaches deeper into skin, and it stays stable in sunlight. It dissolves in oils, so it blends into creams and lotions without a chalky finish. You will most often see it in sunscreens and some body washes.

Good for

Suits shoppers who want UVA protection and are comfortable with chemical sunscreen filters.

Be careful if

Chemical UV filters like this one are worth checking if you have very sensitive skin or want a mineral-only sunscreen.

Frequently asked questions

Is DHHB the same as avobenzone?

No. Both are organic UV filters and both help block UVA light, but they are different molecules. Avobenzone is a common UVA filter that breaks down in sunlight unless stabilized, while DHHB is known for holding up well in sunlight.

Should I avoid DHHB if I have sensitive skin?

Not necessarily. Many people with sensitive skin use chemical sunscreens without trouble. If your skin reacts easily, look for a fragrance-free version, patch test a new product on your inner arm first, and ask a dermatologist if you are unsure.