Recently my hair drop massively..which it is kinda sad due to the use of tresemme for shampoo and conditioning now. Now i had stop using it (band it) Besides that, i notice that most of the shampoo contains SLS and SLES which i heard is harmful to the scalp and hair. Now i had just bought sebamed and it also contains SLES.haih.. Now i'm wandering what is the best and safe shampoo to be use. I need my hair back..pls advice ..thank you