Résistance Sérum Thérapiste Size:30ml providing a deep cleanse while providing a deep cleanse while leaving hair Main ingredients: biological extract of sativus pineapple and white willow The key ingredients in Kérastase Serum Therapiste include: Fibra Kap™: a powerful complex of peptides and amino acids that help to repair and strengthen hair fibers SP94: a molecule that helps to stimulate hair growth and nourish the scalp Six Amino Acids: a blend of amino acids that work to repair and strengthen hair fibers Wheat Protein Derivative: a conditioning agent that helps to smooth and protect the hair cuticle Resurrection Sap: an extract from the Myrothamnus Flabellifolia plant that helps to restore hair's natural elasticity and flexibility How to Use It Do not rinse out