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Polymethylsilsesquioxane
Polymethylsilsesquioxane
Safe
Cosmetic ingredient only, not approved for food use. Considered safe in cosmetic applications by CIR; inert silicone matrix.
Found in
14 products
What it is
Silicone-based crosslinked polymer powder.
Cosmetic ingredient (texture/feel modifier); not a food additive.
Why it's flagged
- Not a food ingredient
What regulators actually say
"Polymethylsilsesquioxane is reviewed by the Cosmetic Ingredient Review Expert Panel as a cosmetic ingredient."
Regulatory status
United States — FDA
Not a food additive.
European Union — EFSA
Not authorized as food additive.
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