Resistance Therapiste is a hair care line from the luxury brand Kerastase that is designed to repair and revitalize damaged hair. The line includes a shampoo, conditioner, and hair mask, as well as a serum and heat protectant. The products are formulated with a combination of powerful ingredients such as plant-based keratin, amino acids, and ceramides to help strengthen and protect hair fibers from within. The line is particularly beneficial for those with severely damaged or over-processed hair, as it helps to restore and rebuild the hair's natural strength and elasticity. Overall, Resistance Therapiste is a high-end hair care line that aims to nourish and repair hair from the inside out.