Last winter i tried twin labs Andro Nitrate 3 Fuel (pills) and got some pretty good results with it. Now i see they got Andro Nitrate 4 Fuel. My question is that Andro 3 seems to be a prohormone and the new one seems to be a natural test booster. Can anyone conferm this for me and is the new one any good? Has anyone else ever used it too? Thanks