Exfoliate Pre-Shampoo Scalp Purifying Gel is an pre-shampoo scalp treatment with a dual detox action. Just like the skin, the scalp can benefit a lot from a regular exfoliation. As oil and impurities tend to accumulate on the scalp, they may asphyxiate the hair follicle, weakening the hair and damaging its condition. This pre-shampoo exfoliating jelly brings that much-needed detoxifying action to your scalp, so that it may find its optimal balance.