Science
Mechanism of Action
Functioning largely on the skin's surface due to its substantial molecular size, this cross-linked isocyanurate trimer copolymer is formed via water-mediated urea linkages. Its primary roles include acting as a filler and an anticaking agent, which collectively refine the product's consistency and impart a desirable powdery, velvety finish to the skin in both rinse-off and leave-on formulations.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Conflicts
- Formulators must employ stringent good manufacturing practices to minimize the presence of potential heavy metal impurities associated with this ingredient.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Panel has determined that this ingredient, like other HDI polymers, is "safe as used" in cosmetics. While predicted to be non-irritating in vitro for skin and non-sensitizing in guinea pigs, it demonstrated slight ocular irritation in rabbit studies. A cautionary note exists from some certification bodies which classify ethoxylated substances, including this one, as "Muy Dudoso" (Very Doubtful) due to concerns over ethylene oxide contamination.
Your Skin
Skin Compatibility
Our Assessment
Verdict
A functionally versatile ingredient that imparts desirable textural properties and stability to formulations, evaluated as safe for cosmetic use by the CIR, albeit with a recommendation for impurity control.
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