Diethylamino Hydroxybenzoyl Hexyl Benzoate

Diethylamino hydroxybenzoyl hexyl benzoate (DHHB, trade name Uvinul A Plus) is an organic filter with peak absorption in the UVA1 range and good photostability relative to avobenzoneAvobenzoneStrongButyl Methoxydibenzoylmethane · Organic UVA filterThe main UVA1 organic filter in US sunscreens; photounstable unless paired with stabilisers.Open in the Index →[1][2].

What it does

Provides UVA protection in modern chemical/hybrid sunscreens, often alongside UVB filters such as ethylhexyl TriazoneEthylhexyl TriazoneStrongEthylhexyl Triazone · Organic UVB filterOil-soluble UVB filter (Uvinul T 150); EU Annex VI max 5%. High extinction, photostable.Open in the Index → and broadband filters like methylene Bis-Benzotriazolyl TetramethylbutylphenolMethylene Bis-Benzotriazolyl TetramethylbutylphenolStrongMethylene Bis-Benzotriazolyl Tetramethylbutylphenol · Organic broadband UV filter (particulate)Tinosorb M / bisoctrizole — hybrid organic filter that also scatters; EU Annex VI max 10%. Distinct from bemotrizinol (Tinosorb S).Open in the Index →.

The evidence

EU Cosmetics Regulation Annex VI lists DHHB as an authorised UV filter up to 10%[1]. It is not currently an approved US OTC monograph filter, so US drugstore sunscreens rely on other UVA actives.

How to use it

Relevant when reading EU/KR/AU-leaning SPF labels. Pairing diversity (UVA + UVB + photostable boosters) matters more than any single filter name.