BIO solid shampoo by MUSTELA The first solid shower shampoo for hair and body. Soap-free, silicone-free, sulphated surfactant-free, enriched with organic avocado and organic olive oil to cleanse the hair and body of the whole family, from 3 years old. Leaves skin supple and comfortable and hair soft and shiny. A minimalist, multi-use product for the whole family. With zero plastic and zero waste.