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HYDROXYPROPYLTRIMONIUM HYDROLYZED OAT PROTEIN
Safety score · 0–100
Good
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A quaternary ammonium derivative of hydrolyzed oat protein providing excellent hair/skin conditioning with strong moisturizing and anti-static benefits.
Hydroxypropyltrimonium Hydrolyzed Oat Protein is a cationized hydrolyzed protein where oat (Avena sativa) protein hydrolysate is reacted with hydroxypropyl trimethylammonium chloride to confer a permanent positive charge. This improves substantivity to skin and hair compared to non-cationized proteins. EU Regulation 1223/2009 permits hydrolyzed oat proteins without specific Annex II or III restrictions. Oat protein is well tolerated even by sensitive and rosacea-prone skin, and the cationized form improves both conditioning performance and mildness.
Skin benefits
- Strong moisturizing and water-binding humectant properties
- Film-forming barrier reinforcement
- Anti-static conditioning improving skin/skin feel
- Anti-inflammatory properties from oat beta-glucan content
Known concerns
- Mild allergen potential in individuals with oat sensitivity (celiac-adjacent)
References
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.