Volatile linear silicones are low molecular weight fluids (varying from 0.65 cSt to 2 cSt) which are excellent clear odourless emollients for personal care.
Volatile on skin, they present low surface tension, fast rate of evaporation, unique lubricity, ability to spread easily and good miscibility with most of ingredients (see Table 3). As a result, they are exceptional silky and non-greasy carriers for skin care, deodorant and antiperspirants, sun care, hair care and colour cosmetics.
For instance, in makeup they act as a volatile carrier in pigment dispersions, in aerosols they can be used as a replacement for organic solvents, while in sun care they can be used as a solvent for actives and a dispersing aid for micronised oxides.
Upon evaporation, volatile linear silicones impart soft, dry velvety feel, with no residue or build-up. They reduce stickiness, and as a result in sprayable formulations they reduce clogging of nozzles. In stick formulations they are nontacky, and can be applied without drag, and emulsions are soft, with a smooth feel and pleasant application with a unique skin-feel.
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