After my accutane cycle, a lot of the acne went away and I was left with red scaring. The tanning really helped blend my skins tone closer to the red scaring. Also, it dried up the existing acne pretty well.
Just don't tan while on accutane or other acne meds. Your more prone to burning.
Finally, I would suggest covering your face if you use a lay down tanning machine. It will cut down on the wrinkles you get with age.
I also took a low dose of Melanotan II and that seemed to enhance the results.
give it a try!