Answer by
catysuzgirl2000 (578)
Salicyclic acid or beta hydroxy acid BHA, is used in skincare and hair products. Anti- dandruff shampoos contain salicyclic acid to cause the cells of the epidermis to shed more easily.It opens clogged pores and allow for new cell growth. Due to its effect on skin cells and its chemical properties, it removes dandruff effectively.