Anyone try or hear of FRS?

https://secure.healthyenergy.com/billinfo_ano n_b.aspx?vid=0&cid=0&oid=0&aid=0& amp;sid=0&ncp=1&product_id=396&0x =0

 I'd like to try it but not sure about it's "naturalness"

It hyped me up and was tasty. It made me feel just really good. It wasn't like caffine where I get jittery, but it did make me feel alert and good. They have free samples, I believe, and you only pay for shipping. So I did it and really enjoyed it.

the gym i work at sells them.  they are pretty good.  the peach/mango flavor tastes good.  watch out for the lemon-lime one cuz that one has higher sugar and calories than the others.  the only complaint i had about them was a weird aftertaste.  i think its the metal of the can, it is reminiscent of cornbeef or spam.  you can smell it while you drink.  i don't recommend getting the berry one though, that one had the worst smell and flavor.

 as for naturalness, b vitamins can give you an energy boost versus caffeine, but i would check the product website or other nutrition sources.   sorry if i didn't help.