Threonine
A cosmetic ingredient used as antistatic, hair conditioning, hair waving or straightening in skincare, haircare, and personal-care products sold in the European Union.
What is it?
2-Amino-3-hydroxybutanoic acid
What does it do?
Threonine is listed in the EU cosmetic ingredient inventory with the following declared functions:
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Antistatic
reduces static electricity, mostly in hair products to keep strands smooth and manageable
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Hair conditioning
improves the appearance, feel, and manageability of hair
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Hair waving or straightening
permanently changes the shape of hair through chemical reduction and re-oxidation of the hair's disulfide bonds
EU regulatory status
Threonine 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 Threonine?
Threonine is a cosmetic ingredient catalogued in the EU CosIng database. 2-Amino-3-hydroxybutanoic acid
Is Threonine allowed in cosmetics in the EU?
Yes. Threonine is allowed for use in cosmetic products in the EU under Regulation 1223/2009.
What does Threonine do in cosmetic products?
Threonine is declared in the EU cosmetic ingredient inventory with these functions: antistatic, hair conditioning, hair waving or straightening.
What is the CAS number of Threonine?
The CAS (Chemical Abstracts Service) number for Threonine is 72-19-5 / 80-68-2.
Related ingredients
Source: EU CosIng database (European Commission). This page is derived from public-sector information published by the European Commission. · Last updated: 15/10/2010