Brand new, unopened KADASON Scalp Shampoo & Treatment Set of 4: 2 Shampoo bottles 2 Treatment bottles Controls "dandruff" and "itching," keeping the scalp healthy. Does not use shampoos containing petroleum-based surfactants. Recommended for those concerned about skin irritation and itching. By using it for a long time, it can reduce the act of "scratching," leading to a healthy scalp.