REVOX B77 JUST SALICYLIC ACID 2% FOR SCALP is a clarifying serum for oily, acne-prone skin of the head. The effective 2% BHA gently exfoliates and purifies the scalp, helping control excessive sebum production while also dealing with head acne. Formulated with calming Tea Tree Oil as well as moisturizing Betaine, the serum works for a fresher, healthier scalp and hair. The light silicone-free formula penetrates the scalp without leaving a greasy sensation. This product targets acne-prone scalp, and is beneficial for all hair types.