Haircode Keratin Enhancer Shampoo 250MlThinning, fine hair needs a special shampoo. Hair that is thin and weak has low resistance to harsh cleansers, but unless properly cleansed well, scalp oils weigh thin hair down and make lasting volume a challenge. HairCode Shampoo is designed especially for thinning hair to gently deep clean and stimulate the scalp to nourish and rejuvenate the hair follicles. Keratin in HairCode Shampoo helps to rebuild the protein structure of your damaged hair.