I hit something by mistake and it posted on me, so ill continue here....
the next important thing is the oil, look for quality oils like hemp seed, and lots of vitamins is always good for the skin.
keeping your skin moisturized is what makes the tan last so invest in some good lotion so it doesnt get flaky on you.
tinglers are a personal choice, they draw the blood to the surface which can give you a darker tan sometimes but they can make you feel really hot, and i hate that, i find it warm enough when your in the bed. the chilly pepper that i mentioned has a cooler in it, it makes you tingle like a cool breeze, i like it when it is hot out.
you might be able to find some tanning lotion online for manufactures pricing, do a search on google or check ebay
hope this helps! happy tanning