它的主要成分是resorcinol 间苯二酚，治痘效果不被大多数医生采用。同时有较强副作用， 特别对年轻的痘友们：
“Although the risk of serious side effects is low when resorcinol is applied to the skin, side effects can occur if the medicine is absorbed into your bloodstream. Your body may absorb resorcinol through the skin if you use too much or if you apply it over large skin areas. Skin that is cut or irritated may also absorb more medicine. Stop using this medicine and call your doctor at once if you have: headache, tired feeling, shortness of breath; blue-colored skin; fast or irregular heartbeats; seizure (convulsions); or weak or shallow breathing. Children can absorb larger amounts of this medicine through the skin and may be more likely to have side effects.