The scalp is the root of our hair health and can be the first place to show signs of imbalance which can contribute to the overall look and feel of your locks. Each Clean & Healthy Scalp Duo contains a full-size (150ml); Salicylic Acid Scalp Exfoliating Scalp Treatment: This lightweight serum helps to remove flakes and itchiness through gentle exfoliation of the scalp, balancing oil production and reducing redness. Glycolic Acid Exfoliating Scalp Scrub: Removing excess buildup (caused by products, dead skin cells or dirt) can encourage normal growth and roots to lift up. This gentle exfoliating scalp scrub is formulated with both chemical and physical exfoliators to help remove any excess build up and leave your hair looking fresh and healthy. We suggest using these scalp treatments 1-2 times per week and recommend to only use one at a time.