How we scored it
Where it comes from
Made by reacting mineral fumed silica with dichlorodimethylsilane (from methyl chloride and silicon) to hydrophobise the particle surface. The silica core dominates the mass; the surface treatment is petrochemical.
In plain English
A treated mineral silica powder used to thicken and stabilise formulas and prevent caking. It's mostly natural mineral silica with a thin synthetic surface coating for water resistance.
CosIng definition: Silane, dichlorodimethyl-, reaction products with silica
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References
- 1ISO 16128-1:2016 and ISO 16128-2:2017 — Guidelines on technical definitions and criteria for natural and organic cosmetic ingredients and products. ISO, Geneva.
- 2SILICA DIMETHYL SILYLATE. CosIng — European Commission cosmetic ingredient database. ec.europa.eu/cosing ↗
- 3SILICA DIMETHYL SILYLATE. CosIng u2014 European Commission database for information on cosmetic substances and ingredients. https://ec.europa.eu/growth/tools-databases/cosing/search?search=SILICA%20DIMETHYL%20SILYLATE