Best build able spray tan solution?

[Okayrylee]

Just starting a spray tan business and am wondering what the best solutions are?
I'm looking for;
NO orange tone
Build able (more coats for darker color)
Long lasting
Even fading

Let me know the best ones you've tried!
I'm also interested in free samples.

 

[sammysammsam]

a new tan has launched in the uk from the distributors of opi in the uk - lena whites called LDN:SKINS.......... its the best tan i have ever seen, kate middleton used it on her wedding day, not sure if its in the US yet though

xx