3-Hydroxybutyric Acid
A cosmetic ingredient used as anti-sebum, humectant, plasticiser in skincare, haircare, and personal-care products sold in the European Union.
What is it?
3-Hydroxybutyric Acid is the organic compound that conforms to the formula:
What does it do?
3-Hydroxybutyric Acid is listed in the EU cosmetic ingredient inventory with the following declared functions:
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Anti-sebum
helps regulate or reduce excess sebum (oil) on the skin
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Humectant
draws moisture from the air or deeper skin layers to the surface, helping skin retain water
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Plasticiser
adds flexibility to film-forming polymers, e.g. in nail polish or mascara
EU regulatory status
3-Hydroxybutyric Acid is allowed for use in cosmetic products in the European Union under Regulation 1223/2009. It is not subject to a specific Annex restriction at the time of writing.
Frequently asked questions
What is 3-Hydroxybutyric Acid?
3-Hydroxybutyric Acid is a cosmetic ingredient catalogued in the EU CosIng database. 3-Hydroxybutyric Acid is the organic compound that conforms to the formula:
Is 3-Hydroxybutyric Acid allowed in cosmetics in the EU?
Yes. 3-Hydroxybutyric Acid is allowed for use in cosmetic products in the EU under Regulation 1223/2009.
What does 3-Hydroxybutyric Acid do in cosmetic products?
3-Hydroxybutyric Acid is declared in the EU cosmetic ingredient inventory with these functions: anti-sebum, humectant, plasticiser.
What is the CAS number of 3-Hydroxybutyric Acid?
The CAS (Chemical Abstracts Service) number for 3-Hydroxybutyric Acid is 625-72-9.
Related ingredients
Source: EU CosIng database (European Commission). This page is derived from public-sector information published by the European Commission. · Last updated: 29/03/2019