:lol:I love Nouvatan and I would stock 8, 12 and 20. You can then make 10, 14 and 16 by mixing and you've got the full range but only have to buy 3 bottles. You can use the 20 as a rapid tan and it comes out like a 12 but washes off after only 4 hours. I did this last week on a lady who wanted a tan for that night and she loved it.