Sodium Cyclodextrin Butylsulfonate
A cosmetic ingredient used as absorbent, preservative, solvent in skincare, haircare, and personal-care products sold in the European Union.
What is it?
Beta-cyclodextrin sulfobutyl ether, sodium salts; ethers sulfobutyliques de b-cyclodextrine, sels de sodium; Heptakis-1-(4-sulphonylbutyl)-cyclodextrine, sodium salt; β-Cyclodextrin sulfobutyl ethers sodium salts
What does it do?
Sodium Cyclodextrin Butylsulfonate is listed in the EU cosmetic ingredient inventory with the following declared functions:
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Absorbent
takes up water-based or oil-based substances
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Preservative
prevents microbial growth in cosmetic products, extending shelf life and protecting users
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Solvent
dissolves other ingredients into a uniform liquid phase
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Surfactant - cleansing
surfactant whose primary cosmetic role is cleansing — the active workhorse in soaps, shampoos, and body washes
EU regulatory status
Sodium Cyclodextrin Butylsulfonate 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 Sodium Cyclodextrin Butylsulfonate?
Sodium Cyclodextrin Butylsulfonate is a cosmetic ingredient catalogued in the EU CosIng database. Beta-cyclodextrin sulfobutyl ether, sodium salts; ethers sulfobutyliques de b-cyclodextrine, sels de sodium; Heptakis-1-(4-sulphonylbutyl)-cyclodextrine, sodium salt; β-Cyclodextrin sulfobutyl ethers sodium salts
Is Sodium Cyclodextrin Butylsulfonate allowed in cosmetics in the EU?
Yes. Sodium Cyclodextrin Butylsulfonate is allowed for use in cosmetic products in the EU under Regulation 1223/2009.
What does Sodium Cyclodextrin Butylsulfonate do in cosmetic products?
Sodium Cyclodextrin Butylsulfonate is declared in the EU cosmetic ingredient inventory with these functions: absorbent, preservative, solvent, surfactant - cleansing.
What is the CAS number of Sodium Cyclodextrin Butylsulfonate?
The CAS (Chemical Abstracts Service) number for Sodium Cyclodextrin Butylsulfonate is 182410-00-0.
Related ingredients
Source: EU CosIng database (European Commission). This page is derived from public-sector information published by the European Commission. · Last updated: 25/04/2019