Cystine
A cosmetic ingredient used as antistatic, fragrance, hair conditioning in skincare, haircare, and personal-care products sold in the European Union.
What is it?
Cystine
What does it do?
Cystine 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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Fragrance
provides scent or masks the natural odour of other ingredients
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Hair conditioning
improves the appearance, feel, and manageability of hair
EU regulatory status
Cystine 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 Cystine?
Cystine is a cosmetic ingredient catalogued in the EU CosIng database. Cystine
Is Cystine allowed in cosmetics in the EU?
Yes. Cystine is allowed for use in cosmetic products in the EU under Regulation 1223/2009.
What does Cystine do in cosmetic products?
Cystine is declared in the EU cosmetic ingredient inventory with these functions: antistatic, fragrance, hair conditioning.
What is the CAS number of Cystine?
The CAS (Chemical Abstracts Service) number for Cystine is 56-89-3.
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