"was prescribed this while awaiting accutane (as a female i&#039;m required to wait an entire month before being allowed to start it). i had severe acne including over ten cysts on my face at a time...took effect after the first day my skin began improving. i have lots of scarring but no new cysts and the ones i had have cleared up or are in the process and i&#039;m only a week and a half in. i&#039;m on two a day at 100mg each.  highly recommended. worked pretty quickly for me!"