"if you&#039;ve come here looking for some hope on whether retin a works or not than your answer is yes! i have been struggling with acne for almost 3 years now i want to think its a phase but who knows. i started retin a febuary 2015 and it is now may 2015 and my skin looks amazing. trust me i had that &quot;purging&quot; phase and it sucked so bad i didn&#039;t even want to go out and public because of how bad my face was. if you feel like it isn&#039;t working give it time, time and patient is key when using this product. i went through two purging phases during week 3 and 5 but after that it was pretty much a smooth ride. stick with it! give it 3-4 months!"