Dimethicone/PEG-10/15 Crosspolymer

Dimethicone/PEG-10/15 Crosspolymer is a silicone-PEG crosspolymer used as a texture modifier/emulsifier and film-former, typically at low concentrations (often ~0.1–5%), and it is generally well-tolerated with low rates of irritation in patch testing. While silicones are largely inert, the PEG-modified structure and polymeric film can occasionally contribute to stinging or occlusive-related discomfort in highly reactive or severely impaired barriers, so it is not scored as fully inert. Overall, it fits a very gentle profile suitable for most sensitive skin, with rare irritation potential warranting a cautious but low score. Safety Notes: In commercial skincare, Dimethicone/PEG-10/15 Crosspolymer is commonly used as a silicone elastomer/emulsifying-texturizing agent at very low levels (~0.1–1%) in lotions/serums to improve slip, stabilize emulsions, and reduce tack. Mid-range usage (~1–10%) appears in primers, blurring/moisturizing gels, and silicone-rich barrier products where it builds a soft-focus, velvety film. The highest consumer OTC levels (~10–25%) are found in anhydrous or silicone-dominant leave-on balms/primers where the crosspolymer is a primary structurant; rinse-off products are typically at the lower end due to cost and sensorial targets rather than regulatory limits.