I was off for about a year and a half, I think. It was a long time. And I noticed even after that long a time I never got those prominent tan lines you usually get after going to the beach half the day. I seem to have permanently darkened, not a lot but, as I said, my color never seemed to go back to the original "white" that it was. Maybe the good doctor, if he reads this, can make a comment.I haven't tanned or taken it for months and I'm still dark... How long have you been off of it kawilt??