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STEARDIMONIUM HYDROXYPROPYL HYDROLYZED CASEIN

80

Safety score · 0–100

Good

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

About

Derived from hydrolyzed casein, a milk protein, used to help condition hair.

Steardimonium Hydroxypropyl Hydrolyzed Casein is a quaternary ammonium derivative of hydrolyzed casein (milk protein) used as a conditioning and film-forming agent in cosmetic products. It is not subject to specific EU restrictions under Regulation 1223/2009. The ingredient is valued for its moisture-binding properties and smooth film formation on skin and hair. Formulators should note the dairy origin for allergen declarations and vegetarian compliance requirements.

Skin benefits

  • Moisture-binding film formation
  • Conditioning and softening
  • Improves skin and hair texture

Known concerns

  • Animal-derived (milk) - not vegan compliant
  • Dairy allergen considerations
  • Lactose residue potential

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.