Solid Shampoo

Solid shampoo is - in contrast to hair soap - basically normal shampoo. Water has been removed from it and it comes in one piece. You can lather the solid shampoo under water, spread the lather in the hair and then rinse it out. You can also rub the shampoo over your hair and lather it up on your head. So it's very similar to shampoo in a bottle, only this one doesn't need a plastic package! As a rule, a solid shampoo also lasts much longer, up to several weeks.