Science
Mechanism of Action
As a cationic polymer, Polyquaternium-60 possesses inherent positive charges, enabling it to electrostatically bond with the negatively charged surface of the skin. This characteristic ensures its adherence and film-forming capability, resisting rinse-off. It functions as a humectant by attracting atmospheric moisture and binding it to the skin, thereby improving hydration levels. Concurrently, its film-forming properties establish a protective barrier on the skin's surface, effectively minimizing transepidermal water loss and defending against environmental irritants, culminating in skin that feels smoother, softer, and more conditioned.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Optimal functionality, specifically regarding charge density and overall effectiveness, is maintained within a pH range of 4 to 8. Efficacy may diminish outside this window.
Conflicts
- strong oxidizing agents
- iron
- iron salts
- steel
- copper
- copper alloys
- aluminum
- anionic surfactants (can form complexes)
Safety
Safety Profile
There is no dedicated CIR (Cosmetic Ingredient Review) safety assessment available for Polyquaternium-60. However, the CIR has evaluated other polyquaterniums (e.g., Polyquaternium-6, -11, -22, -39), generally concluding their safety in cosmetic formulations at specified concentrations. Polyquaternium-6 holds FDA approval as an indirect food additive. For Polyquaternium-60, EWG indicates 'No Data' for common concerns such as skin allergies/irritation, developmental/reproductive toxicity, and respiratory issues.
Your Skin
Skin Compatibility
Our Assessment
Verdict
While demonstrating a clear mechanistic benefit for hydration and barrier support, Polyquaternium-60 currently has insufficient specific safety and efficacy data for a comprehensive assessment in precision skincare.
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References
Sources