It is a genuine herbal shampoo series. Does not contain SLS, SLES and ALS surfactants. Dermoday Thorex Edition Shampoo Collection has been created by Dermoday laboratories for 2 years long term study to ensure healthy hair growth structure and preservation of the appearance of the structure. Each shampoo is enriched with its own sophisticated herbal extracts and herbal keratin. It consists of 7 different shampoos for different hair types which gives you a Premium experience that you have never lived before. Paraben and silicone free.