A.S.
You've gotten a lot of responses--I am just wondering how they know that their solutions made them go away "faster"? Did they use the stuff on one side but not on the other? If not there's no way to tell it if it helps or not!
I'd say, just get a full-coverage swimsuit and wait. It will probably be cheaper in the long run than all of these treatments, and they will fade on their own.
BTW, mine still don't tan. Sunless tanner will cover them, though.