After shampooing, rinse thoroughly and towel dry your hair. Proceed by wrapping your hair in the desired rollers, wearing disposable gloves to ensure maximum hygiene. Apply the curling lotion to each roller in three passes, ensuring the hair is evenly saturated. Once the application is complete, cover with a cap and leave for 15 minutes. Then rinse thoroughly with warm water and towel dry thoroughly. Apply 100ml of Matrix Opti Wave Neutralizer, distributing it evenly, and leave for 5 minutes. Then remove the rollers and gently massage the ends, leaving the product to act for a further minute. Emulsify the Neutralizer into the hair until it forms a soft foam, then rinse thoroughly for 5 minutes. This treatment is intended for professional use only.