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The ingredient, explained

Diethylamino Hydroxybenzoyl Hexyl Benzoate

Laboratory formulation testing examined DHHB interactions with avobenzone.

UV filter
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Ingredient guide

What it is and what it does

Benzoic Acid, 2-[4--Diethylamino--2-Hydroxybenzoyl]-, Hexyl Ester

About this ingredient: EU CosIng ingredient registry (via Open Beauty Facts taxonomy) ↗

UV filter
Filters some UV radiation. The ingredient label does not establish a finished product's SPF or UVA protection.

Function definitions: European Commission ingredient function definitions (SCCNFP/0299/00, pages 16 to 20) ↗

Registry functions describe possible formulation roles, not results for a finished product. A dictionary entry is not an approval or a safety assessment.

A closer look

What the research shows

Laboratory research

Laboratory spectroscopy and stability testing examined DHHB interactions with avobenzone; tested formulations provided UVA protection.

What this does not tell us

Formulation and laboratory findings, including fibroblast phototoxicity assays; no human efficacy or standalone DHHB SPF inference.

Sources for this summary. PubMed 28042100 ↗

Research review checked Oct 1, 2026

Bounded review of local candidates, exact-name indexed primary journal/PubMed safety and topical searches; not a systematic review.

Ingredient research is not proof that a product containing this ingredient works.

Read the 1 selected study

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Products containing this ingredient

All 169 products ↗

From the wider catalogue. Linked by the ingredient list, without an efficacy ranking.

Names and identifiers

Registry identity

Benzoic Acid, 2-[4--Diethylamino--2-Hydroxybenzoyl]-, Hexyl Ester

INCI name on ingredient lists
DIETHYLAMINO HYDROXYBENZOYL HEXYL BENZOATE
CAS registry number
302776-68-7
EC number
443-860-6

Sources for this ingredient record