A little goes a long way
It’s expensive for a shampoo but I used to get the worst dandruff. I used to use head and shoulders but I noticed my hair has been thinning as I age. I find less hair falls out when used in conjunction with the leave in treatment - I don’t bother with the conditioner as that doesn’t actually come in contact with the scalp. The product lost one star due to the scent, it’s not that nice