Global keratin treatment the best about this product 34the best34 way to tame and manage your hairrejuvenates while straightening and strengthening hair for up to 5 months how it works 34the best34 reduces the stiffness elastic modulus in the hair this reductionor softening effect causes the hair to lose its natural curl and feel softer the greater the concentration along with application of juvexin the softeror straighter the hair will becomejuvexin penetrate