I used accutane for 6 months, twice, when I was 16 and 17. I did get acne afterwards but not as severely. The second time almost did the trick, but not quite. Even though I was on it an extended amount of time, I didn't even get monthly blood checks the second time around because I never had problems the first time. That shit is a blessing though, because I can't image what my face would look like w/o it, maybe a domino's pizza or something
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Oh and by the way, if your face gets really dry and chapped after being off the stuff for a while, that proactiv stuff works wonders.