DIHYDROXYACETONE
Official label name (INCI name, EU glossary of cosmetic ingredient names), No 8705
- Allowed with restrictions (Annex III)
DIHYDROXYACETONE: Allowed with restrictions, with limits depending on the product type (Annex III, entry 322), under Regulation (EC) No 1223/2009.
In plain words
What it is used for
Functions declared by manufacturers:
Hair dyeing: colours hair.
Tanning: darkens the skin with or without exposure to UV.
Miscellaneous (skin conditioning): maintains the skin in good condition.
What the rules say
Allowed, with restrictions: Annex III sets a maximum concentration and the product types allowed. Ingredient lists do not give quantities, so the concentration cannot be checked on the label.
The text of the annexes
Allowed with restrictions
- Entry
- Annex III, No 322
- Substance
- 1,3-Dihydroxy-2-propanone
- Glossary names
- DIHYDROXYACETONE
- CAS
- 96-26-4
- EC
- 202-494-5
- Product type
- (a) Hair dye substance in non-oxidative hair dye products (*) (b) Self-tanning products (*) (*) From 26 January 2022 hair dye and self-tanning products containing that substance and not complying with the restrictions shall not be placed on the Union market. From 22 April 2022 hair dye and self-tanning products containing that substance and not complying with the restrictions shall not be made available on the Union market
- Maximum concentration
- (a) 6,25 % (b) 10 %
Dates in the act (3)
- Entry into force on 26 July 2021
- Placing on the market from 26 January 2022
From 26 January 2022 hair dye and self-tanning products containing that substance and not complying with the restrictions shall not be placed on the Union market
- Making available from 22 April 2022
From 22 April 2022 hair dye and self-tanning products containing that substance and not complying with the restrictions shall not be made available on the Union market
Excerpts from the English text published in the Official Journal. A date may concern only some substances of the act: the excerpt says so.
Identity
- CosIng identifier
- 75563
- CAS (according to CosIng)
- 96-26-4
- EC (according to CosIng)
- 202-494-5
- Declared functions
- Hair dyeing, Tanning, Skin conditioning: miscellaneous
- Wikidata
- Q409618
- PubChem
- 670
- ECHA InfoCard
- 100.002.268
- InChIKey
- RXKJFZQQPQGTFL-UHFFFAOYSA-N
Elsewhere in the world
Information on other jurisdictions. What is covered, and what is not yet.
United Kingdom (Great Britain)
- No specific rule in the Cosmetics Regulation
Entry 322 of Annex III of EU law (Regulation (EU) 2021/1099) has no equivalent in British law.
Switzerland
Regulation (EC) No 1223/2009 applies in Switzerland (Article 54 of the Ordinance on Foodstuffs and Utility Articles).
United States, federal rules
None of the integrated sections of the federal code (21 CFR 700.11 to 700.27 and 250.250) targets this name. The FDA does not publish a list of allowed ingredients.
South Korea
- Allowed colorant: 디하이드록시아세톤 (Dihydroxyacetone) (Dihydroxyacetone)
색소 고시 별표 1 (allowed colorants), entry 98, page 6.
Recorded cosmetics that contain it
19 recorded products list it, according to Open Beauty Facts contributors. Records are dated: the formula may have changed. See the list (page in French).
Glossary: Commission Implementing Decision (EU) 2025/1175. Page updated on 21 October 2026.