No need for a straightening iron. Get a smoothing and straightening effect to reduce volume. Its formula with coconut oil and keratin repairs split ends, leaving hair soft and shiny. Free of formaldehyde, guanidine and toxic fumes. With heat protection and heat memory that guarantees straight hair for 4 weeks. The kit contains a 150 ml smoothing treatment mask, a 30 ml post-straightening shampoo, a 30 ml post-straightening conditioner, a pair of gloves for performing the treatment and step-by-step application instructions.