milk_shake glistening serum, a truly versatile product made with natural oils and vitamins, can be used before and after hair styling to eliminate frizz, leaving hair looking and feeling healthy all day long. milk_shake glistening serum smoothes hair cuticles and adds extreme softness and manageability. Hair’s optimum internal hydration balance is maintained, leaving it shiny and easy to comb. Use: Rub a few drops in your palms and apply on hair before or after styling.