Science
Mechanism of Action
The ingredient is a complex crosspolymer built from Polyvinyl Alcohol (PVA), 1,6-hexamethylene diisocyanate (HDI), and ethylenediamine. PVA is renowned for its ability to form a visible barrier on the skin, crucial for optimizing moisture retention, leading to a hydrated and supple complexion. This film also provides a protective layer against external factors like UV radiation and pollution. Furthermore, the HDI polymers within the structure reinforce film formation and increase product viscosity. The overall crosslinked network stabilizes the formulation, improving texture, spreadability, and potentially absorbing excess surface oils.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Safety
Safety Profile
Both Polyvinyl Alcohol (PVA) and the hexamethylene diisocyanate (HDI) polymer components have been rigorously assessed by the Cosmetic Ingredient Review (CIR) Expert Panel. PVA is deemed safe for cosmetic use, with a maximum reported concentration of 15% in certain skincare preparations. The CIR also concluded that 17 out of 19 assessed HDI polymers are safe in cosmetics, specifically noting the absence of significant residual isocyanate monomers. The FDA further supports the safety of Polyvinyl Alcohol (PVOH) for specific food uses, citing very low oral toxicity.
Your Skin
Skin Compatibility
Our Assessment
Verdict
This crosspolymer is a valuable ingredient for enhancing skin hydration, protection, and product aesthetics, supported by a favorable safety profile.
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References
Sources