Raymond, first off thats a great study on Yohimbine.
Also the product you linked to is lipodrene. What yovwmon is talking about is this:
http://bodybuilding.com/store/nutrex/lipo6.html
Serving Size: 2 Liqui-Caps
Servings Per Container: 60
Amount Per Serving:
Synephrine HCL 20mg
Synthetic 99% Guggulsterones Z&E 1:1 20mg
Yohimbe HCL 3mg
Caffeine Anhydrous USP 200mg
Bioperine 5mg
Other Ingredients:
Sesame oil, oleic acid, gelatin.
Directions:
For Fat loss: Take 2 liqui-caps 30 minutes before breakfast or morning workout and 2 more liqui-caps in the afternoon.
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I hope that clarifys what i was talking about.
Currently I am taking Lipo 6 and ephedrine (25mg) twice a day. During my cutting phase and i have had no problems at all. I also do a ton of cardio along with playing in a basketball league and I havent had any bad side effects. But I am not obese and I am young (20) and also have been working out regularly for the past 4 or 5 years.
If you are in good shape and you have no problems with your heart I think just taking Lipo 6 is fine. I have heard people having great results and it is highly recommended on many body building sites.
-Kevin