SOME BY MI skincare set with 4 steps of AC line products for urgent skin care. The skincare line's key ingredients include AHA that helps to exfoliates skin impurities and dead skin cells, while BHA helps to removes skin dirt and sebum inside the pores, and with PHA to dissolves dead skin cells for non-irritating exfoliation. This AHA, BHA, PHA 30 Days AC SOS Kit consists of Miracle Acne Clear Foam 30ml, Miracle Toner 30ml, Miracle Serum 10ml and Miracle Cream 20g.