Lather the flat side of the solid shampoo directly onto wet hair with small circular motions. Once you have enough lather, rest it and shampoo as usual.
Storing solid shampoo: Rest your shampoo, avoiding leaving it in contact with water so it doesn't melt prematurely. You can, for example, put it on its soap dish or in a place in your shower where it can dry.
Frequency of use: The soft solid shampoo generally makes it possible to reduce the frequency of washing your hair of at least one day. It is recommended to use it 2 to 3 times per week maximum. It will thus last approximately 3 to 4 months.