It is a no 1 shampoo because its give nice result . It is working on internal problems like hair fall, white hair, weak hair.It gives strenght to your hair which make your hair strong and tight.I has been using thing for 1 year and get results which other shampoo dont give to you. Every dermatalogist referred this shampoo.It make your hair very silky and beautiful like silk. Actually my friend refer this shampoo to me and I used this alternate days and its give me good results.