l'oreal nutri summer is the best gradual tanner, it goes on really well, doesnt streak and builds up a great natural looking colour while moisturising your skin. you can go as dark as you like. when its coming off its really good too, doesnt go that yucky patchy way.
if your thinking about an actual fake tan, id recommend xen tan. its smells gorgeous, goes on slightly coloured so you can see where your putting it, it doesnt go orange like fake tan does. check out this link...
http://www.xen-tan.co.uk/index.php?