I have personally used biotique bio soya protein shampoo for dry and colored hairs. It made my hairs really dry and frizzy and lead to hairfall.
My scalp is naturally dry and I have colored my hairs thats why I recommended this shampoo but its waste of money as well as hair’s health.
The fragrance after using it is also not good. I advice people not to use this shampoo if they are having my type scalp i.e. dry. They can better go for other shampoos.