Has anyone else had any success with re-growth of eyebrows with Rogain? I just recently found an unopened bottle and even though it is probably expired I thought I would do a little experiment. I put a little on my tattooed eyebrows twice a day and have been having some eyebrow re-growth. It is pretty sparse and not much to really make a difference but I will keep doing it for at least a few more months to see if the hairs will keep growing.