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PEG-30 Glyceryl Stearate is a blend of the binding and stabilizing ingredient polyethylene glycol and the fatty acid stearic acid.
PEG-30 Glyceryl Stearate has cleansing, suspending, emulsifying and solubolizing properties when used in cosmetics, all of which help other cosmetic ingredients work better.
Interestingly, PEG-30 Glyceryl Stearate is among the least used PEG compounds.
CAS Number: 51158-08-8
Chem/IUPAC Name: Poly(oxy-1,2-ethanediyl), .alpha.,.alpha.',.alpha.''-1,2,3-propanetriyltris-.omega.-hydroxy-, monooctadecanoate (200 mol EO average molar ratio)
PEG-30 Glyceryl Stearate is far more common, with the “100” referring to the molecular weight of the ingredient.
So, for example, PEG-30 Glyceryl Stearate weighs less than PEG-100 stearate.
PEG-30 Glyceryl Stearate may be animal-derived or synthetic, and is considered safe as used in cosmetics, although standard use levels have not been firmly established (safety data on some PEG compounds examined concentrations up to 100% and found no cause for concern).
