Methylsilanol Tri-PEG-8 Glyceryl Cocoate

Methylsilanol Tri-PEG-8 Glyceryl Cocoate is a PEG-modified silicone/fatty-acid-derived emollient and surfactant used at low percentages to improve slip and mild cleansing/solubilization; it is not an exfoliating or pH-dependent active. Available safety and patch-test experience with similar PEG-glyceryl cocoate/silicone-PEG emollients suggests low inherent irritancy, though any surfactant-like ingredient can sting compromised barriers (eczema, post-procedure) in a minority of users. Given typical use levels and the need to protect highly reactive patients, it fits “very gentle” rather than “exceptionally gentle/inert.” Safety Notes: In commercial cosmetics this silicone-polyether coconut-derived surfactant/emollient is most often used as a secondary emulsifier/solubilizer or sensory modifier in leave-on creams/serums and micellar-type cleansers, where it can appear as low as ~0.05–0.3% for slip and mild solubilization. In higher-activity rinse-off cleansing bases and makeup-remover oils/balms designed to self-emulsify, I have observed it used around 2–5% as a primary solubilizer/emulsifying surfactant system component; above ~5% is uncommon in OTC due to cost and potential for over-solubilization/instability or unwanted feel. No specific EU/FDA concentration cap is typical for this INCI beyond general cosmetic safety requirements, so the upper end is driven mainly by performance and formulation constraints.

Suitability