Whether it's a tanning bed or outside in the sun... MODERATION is the key. When you burn, you put your skin at risk for future problems. Slow exposure and not burning will give you the tan you're looking for with the minimum about of risk. There are several unbiased studies that show that tanning in moderation provides Vitamin D and other physical and emotional benefits that people in northern climates (less sun in winter) are lacking.
The effects of tanning are definitely that the bad outweighs the good. You could possibly get skin cancer from using a tanning bed, and it's really bad for you.
You can find several good tanning salons in St Tropez. Check out www.sttropeztan.com.
NO, NO, NO, NO... EVER.
Yes, you will notice a difference within 2 tanning sessions.
You can find cheap home tanning beds at: www.MasterTanning.com
You can go to used-tanning-beds.com. The offer a wide range and good prices on used tanning beds.
The first place to start is Amazon when looking for an affordable Sunstar tanning bed. Another good place to find a tanning bed at a good rate is Ebay.
There are a lot of tanning salons that are located in Las Vegas. I would try to stick with the airbrush tanning though, because it is so much safer than tanning beds.
There are a lot of good self tanning products, a lot of them are made by a company called Australian Gold. Most of these are good and worth the money they cost.
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You can more than likely purchase them at the indoor tanning salon of your choice.
I would suggest this one, the radiance trio 26 here at this site http://www.esbtans.com/. Hopefully, its at the price you want as the quality for it is really good. The site also offers good information on tanning beds and tanning.