The System Professional Smoothen Shampoo is a gentle, luxurious cleanser that promotes smooth, supple hair. Ideal for coarse hair with a mind of its own, the formula helps to soften frizz and fly-aways. It features patented LipidCode™ to support resilient, healthy-looking strands. Delivering a thorough cleanse, the shampoo lifts away impurities from root to tip. It helps to leave lengths soft and manageable.