Skin Conditioning
4-PCA DIPHENYL DIMETHICONE
Safety score · 0–100
Good
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
A diphenyl dimethicone carrying a pyrrolidone-carboxylic-acid (PCA) group — combines the gloss of phenyl silicones with the moisturising affinity of PCA, a natural skin component. Standard silicone safety story with a small humectant bonus.
Function
Skin benefits
- PCA group adds humectant-like water binding
- Phenyl groups give gloss and refractive index
- Compatible with sunscreen and foundation chassis
Known concerns
- Standard silicone environmental persistence
- No significant skin concerns
References
EU CosIng database
European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.
Related skin conditionings
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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve, so always read the physical product label and consult a healthcare professional for personal concerns.