"this medication helped to clear up my acne within the first couple of weeks of use.  however, i think my body developed a resistance to the active ingredient, and some (not all) of the acne returned.  the severity of the acne was much less than before treatment.  one negative side effect i experienced was increased sensitivity and a red rash that extended down my neck.  what ever you do, do not get your eyebrows waxed while using this product.  my skin was ripped off with my eyebrows when i had them waxed."