Years ago I asked a dermatologist about falling hair and dry scaly patches on my scalp and he said it is as simple as using a shampoo without SLS's and you will see an improvement in weeks or less. SLS stands for sodium laurel sulphate or laureth sulphate, the same thing. We used to use it in industrial quantities to strip grease from the floor of our garage workshop and once you go looking there it is in almost every shampoo and cleansing agent in the house, even in toothpaste. Dreadful stuff. Was the dermatologist right? Well, the hair kept on falling out, but then again I am a 64 year old man, but the dry patches, and red scaly marks all disappeared within a month and have never come back. By the way, Faith in Nature makes a really good shampoo and conditioner.