eCosmetics is an authorized retailer of ROSEGOLD Paris.What is it? A serum composed of natural ingredients and powerful active agents.WHAT MAKES IT SPECIAL?Highly concentrated vitamins and active ingredients such as Biotinyl GHK and Biotin A naturalness rate of over 98% Red clover flower extract (or red clover) Can be used as a 3 to 6 month cure (1 flask = 1 month) Apply after each shampoo, do not rinse off.