It works very quickly, you will probably need to do a sunbed session each week and using an accelerator, there is a bit of sun in winter so a little sun exposure will also help. ZZY was on it and probably used about 30ml to get as dark as he did. Anyone can tan on this stuff, you can get really dark on this stuff if you are not careful you can get too dark. You don't get sunburn either and apart from a few dark freckles, the condition of my skin is really good. I do moisturize and exfoliate regularly so this also helps. One of the best things is that I have avoided any blotchiness which I have had in the past and which was aggrivated by a spraytan.