i've been using it for a week yeah,i think it does really work,i mean i know because i can see it on my face that it really works.its amazing,because before i suffered 4 months on my acne,i used a lot of topical creams but didnt work and gets worsts instead.to the point that i cant even touch my face because of big cysts and everything!but now,with doxy,my face is better,my face doesnt hurt anymore..my acne is starting to dry and clear up.and its really cheap!