A 3-step kit to cleanse, balance, nourish and soothe the scalp so that hair is able to thrive.. Hair Renew Pre-Wash Scalp Treatment, Hair Renew Active Scalp Serum and a Quartz Scalp Gua Sha remove product buildup, intensely moisturize, reduce redness, flaking, oil and itchiness and promote visibly longer, fuller hair.