Science
Mechanism of Action
The efficacy of this ingredient stems from its composite nature. Keratin amino acids, due to their smaller molecular size, are capable of penetrating the stratum corneum, acting as humectants to draw and retain moisture, thereby reinforcing the skin's natural barrier. This action leads to improved suppleness, reduced dryness, and enhanced elasticity, contributing to potential anti-aging benefits. Gelatin, a highly purified animal protein, further supports the conditioning effect. The Lysine Hydroxypropyltrimonium Chloride component, a quaternary ammonium cation, imparts antistatic properties and, similar to other quaternized proteins, improves the ingredient's substantivity and moisture-binding capacity within cosmetic formulations.
Research
Clinical Evidence
Insufficient-data confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
The keratin amino acids component demonstrates optimal stability within a pH range of 4.5 to 6.5. As a quaternized protein, it is generally compatible with a wide array of cosmetic formulations; however, its cationic nature means it can form large polyanionic complexes when combined with mild primary anionic surfactants.
Conflicts
- Mild primary anionic surfactants (potential for complex formation)
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) panel has deemed keratin-derived ingredients, including Keratin Amino Acids, safe under current use practices and concentrations, provided animal-derived raw materials are meticulously screened for infectious pathogens, pesticide residues, and heavy metals. While this specific complex was not individually evaluated, its components align with this assessment. There is a low but present potential for irritation in individuals with sensitive skin, largely attributable to the quaternized compound and protein derivatives. Allergic reactions have been observed in prick tests for Hydrolyzed Keratin but not in standard patch tests.
Your Skin
Skin Compatibility
Our Assessment
Verdict
GELATIN/KERATIN AMINO ACIDS/LYSINE HYDROXYPROPYLTRIMONIUM CHLORIDE is a valuable multi-component ingredient for precision skincare, effectively boosting hydration, elasticity, and barrier integrity with low irritation potential, though raw material purity and formulation interactions require careful consideration.
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References
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Sensitive skin ↗
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