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STEARAMIDOPROPYL BETAINE

CAS 6179-44-8
78

Safety score · 0–100

Fine

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

About

A mild amphoteric surfactant and conditioning agent derived from natural fatty acids, widely used in cleansing formulations with a favourable safety profile.

Stearamidopropyl Betaine is a amphoteric surfactant derived from stearic acid and propyl betaine, used as a cleansing, foaming, and conditioning agent in rinse-off cosmetic products. It is listed in CosIng with no EU restrictions and has a well-established safety profile in cosmetic use. The compound is considered low-irritant relative to anionic surfactants, making it popular in gentle cleansers and shampoos. Minor concerns relate to trace impurities (nitrosamines) from the manufacturing process, which are managed through good manufacturing practice.

Skin benefits

  • Mild surfactant — gentle cleansing
  • Improved skin feel in formulations
  • Good foaming properties with low irritation

Known concerns

  • Trace nitrosamine impurities possible from manufacturing (managed by GMP)
  • Generally low irritation but may cause mild eye irritation

References

EU

EU CosIng database

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

Related others

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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.