Fat burner?

I've just finished a bottle of Old School Lab's Vintage Burn, and, even though the scale says I haven't lost much, I feel like it's worked and that I have burned fat and gained muscle. I was looking at another fat burner just to find what works best. I found w700 thermogenic. Anyone tried this or think it's alright? I've kind of found mixed opinions and you can't always trust Amazon reviews, necessarily. I've been walking about an hour/3 miles 3 or 4 times a week but will pick it up soon when I go back to school. Thoughts?

http://www.amazon.com/VINTAGE-BURN-Muscle-Preserving-Raspberry-Ingredients/dp/B00H28YG1C

http://www.amazon.com/W700-Thermogenic-Hyper-Metabolizer-Ubervita-60-capsules/dp/B00HK61L3C/ref=sr_1_1?s=hpc&ie=UTF8&qid=1407943719&sr=1-1&keywords=fat+burner

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