You are better off staying snow white. The stuff that's in most lotions and tanners can cause cancer too. Almost any lotion or tanner you buy from a department store is going to contain cancer causing preservatives. I don't even know of a healthy natural tanner. Eating lots of carrots maybe?
Eating really healthy and drinking lots of water will give you a natural glow, it wont turn you brown, but it will make your skin and body look and feel great. I would opt for an all natural moisturizer from the health food store, without all the cancer causing ingrediants.