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STEARYL BETAINE

CAS 820-66-6
80

Safety score · 0–100

Good

Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.

About

An amphoteric surfactant derived from cetyl alcohol that gently cleanses skin and hair while providing conditioning benefits.

Stearyl Betaine (CAS 820-66-6) is an amphoteric surfactant with a C18 fatty chain. It is structurally related to other alkyl betaines used extensively in cosmetics. Stearyl betaine is considered mild with good skin compatibility and is used in facial cleansers, body washes, and shampoos. It is not listed in EU Annex II or III restrictions. PubChem CID: 101868.

Skin benefits

  • Mild cleansing without over-stripping skin
  • Conditioning and anti-static properties
  • Good compatibility with sensitive skin

References

EU

EU CosIng database

European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.

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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve — always read the physical product label and consult a healthcare professional for personal concerns.