For days when the scalp feels heavy and stuffy due to excess sebum or days when you lack confidence due to hair that begins to clump by the afternoon, this vegan prescription shampoo refreshingly cleanses the scalp and helps to control excess sebum secretion. Tea tree oil rapidly soothes the problematic scalp, and the hypo-allergenic keratolytic agent LHA (capryloyl salicylic acid) gently removes accumulated excess sebum on the scalp pores to create a refreshed and clean scalp. Experience a light scalp without any clumping all day!