ForumsThe RegimenThe RegimenDo I Leave Aha On O... Notifications Clear all Unless you have severe, widespread, and scarring acne, The Regimen is normally my suggestion for the most effective acne treatment.My suggested acne treatment Learn The Regimen → Learn The Regimen → Do I Leave Aha On Overnight? William 8026 MemberMember26(@william8026) Posted : 03/17/2015 2:40 am I'm new to AHA so this will be my first time using it, I just want to know if I leave it on overnight or wash it off after a certain period of time? Quote De Lovely MemberMember599(@delovely) Posted : 03/17/2015 7:43 am Don't rinse off, just leave on! I know adding a new step to your Regimen can be a little scary. But I'm confident you'll do great! Quote M F X F I T N E S S MemberMember360(@mfxfitness) Posted : 03/17/2015 1:32 pm Leave it on, just be sure to take it really slowly in the beginning.. Many people are quite sensitive to AHA... QuoteDeLovely, DeLovely and DeLovely reacted William 8026 MemberMember26(@william8026) Posted : 03/19/2015 2:42 am Okay thanks Quote