HAIR ACTION SMOOTH. Smoothing: thanks to the thermo-active polymers and Milk Silk with emollient and moisturizing, smooth and nourishes the hair without weighing it down. RESULT: Its exclusive formula makes it smooth and shiny. Easy to comb, hair is silky, soft and nourished. Tips from Biopoint: After shampooing, apply to damp hair, leave on for a few minutes, then emulsify with warm water and massage gently. Rinse thoroughly.