Science
Mechanism of Action
This ingredient functions as a structural analog to 18-Methyleicosanoic acid (18-MEA), the natural lipid that coats the hair cuticle. Its cationic (positively charged) nature allows it to selectively bind to damaged, anionic sites on the hair and skin, effectively 'patching' the barrier and restoring water repellency through the reconstruction of the F-layer.
Research
Clinical Evidence
High confidence1%
Key findings
- 01 Clinical evaluation at 0.6% demonstrated the successful restoration of the hydrophobic F-layer and structural repair of the cuticle.
- 02 Testing at 0.3% showed a significant reduction in surface friction, improving smoothness on severely bleached hair fibers.
- 03 Concentrations between 1.0% and 5.0% are clinically validated to accelerate drying time and enhance surface structural integrity.
Transparency
Dusting Analysis
Because it is effective at very low concentrations (starting at 0.3%), many formulations include it at 'claim' levels below 0.1% for marketing purposes without achieving the functional barrier restoration shown in clinical data.
The Formula
Formulation
Stability
The ingredient is heat-stable and remains effective across standard cosmetic pH ranges. It is typically supplied in a preservative-free water/glycerin base.
Synergies
- Glycerin
- Non-ionic conditioners
- Amphoteric surfactants
Conflicts
- Anionic surfactants
- Anionic polymers
- Strongly anionic thickeners
Safety
Safety Profile
While the specific complex is not a standalone CIR entry, its components—hydrolyzed rice protein and glycerin—are well-documented as safe for topical application.
Your Skin
Skin Compatibility
Our Assessment
Verdict
An exceptionally precise biomimetic ingredient for restoring the lipid barrier in damaged hair and compromised skin profiles.
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References
Sources