A solid shampoo does not damage the hair more than another type of shampoo. The key lies in choosing the solid shampoo that best suits your hair type. With Lamazuna solid shampoos, you have 10 different ones, the embarrassment of choice to find the one that suits you best. In addition, you will have gentle surfactants that do not dry out the hair and organic vegetable oils to nourish the hair fiber without weighing it down.