The acne  condition is common in puberty as a result of an abnormal response to normal  levels of the male hormone testosterone. Acne is occurred when the hormones are  increased due to excess of oil in the body.   There is however no way to predict  how long acne will take to disappear completely or that it will ever recur  again. But you can of course regulate the acne growth with Acnezine, the natural scientific treatment product for acne  treatment.