Davines Essential Haircare SOLU/ shampoo is an active, refreshing shampoo that deeply cleans and removes the residue left by styling products. It is ideal before perm or straightening treatments. For normal to heavily-styled hair. Sudsy and airy, SOLU/ shampoo is deeply clarifying to cleanse product build-up and residue from hair using buckwheat extract, leaving it super clean. Hair is refreshed, lifted, and easy to style. Vatlellina Buckwheat Extract: grown on the farm of Mr. Patrizio Mazzuchelli in Teglio, Sondrio, Italy as part of the Slow Food Presidium. Buckwheat is rich in proteins, antioxidants, amino acids, and mineral salts, especially iron, zinc, and selenium.