PEG-40 hydrogenated castor oil
Emollient ingredient that is a mixture of synthetic polyethylene glycol (PEG) with natural castor oil. It’s considered safe for use in cosmetics. The weight and size of this ingredient is too large to penetrate beyond skin’s surface, but that’s fine—this type of emollient is needed on the surface to stop moisture loss and keep skin feeling soft.
Reference for this information:
Toxicological Research, June 2015, pages 105-136
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