Please inquire about the substance Polyvinylpyrrolidone which have different size of molecule weight since PVP-K15 , PVP-K17 , PVP-K30 , PVP -K60 which grade helps substance moisturizing Can maintain moisture on the skin for up to 12 hours to 24 hours. and the least gooey and PVP-K15 , PVP-K17 , PV...
