Laser tattoo removal on very tanned skin, is it safe and will it work?

Is it safe to use a Revlite laser on tanned skin? I am going on a trip,and will get aproximately 2,5 months of sun exposure, so i'll be very tan. I am a white male, 19 years, and i have a black tattoo on my lower leg, which is why i cant cover it. I will use sunscreen all the time, but it will still get tanned. I have a removal session planned 5 days after i come home from the trip, and my laser provider says that he can do a session on me, and that it will work, but be a little less effective.