Extreme

I've used them and so have all the staff at Extreme, they are easily the best on the market for strength and value for money. We stacked 1 Grenade with 3 Lean-R and the results were very good, the reason for mixing the 2 was to get the tyrosine, hydroxycitric acid, synephrine and other things that are in Lean-R but are missing in Grenades.

If you get drug tested go for the pink ones, I found them just as strong and know 5 people who passed IOC drug tests while using them.