you cant compare DAA with HGHup and IGF 2. they dont claim to do the same things. DAA can be stacked with IGF 2 or HGHup, but dont compare the results. DAA is a testosterone booster. HGHup and IGF 2 do boost test, but its not its MOA. They primarily increase GH. why dont you stack HGHup or IGF 2 with DAA?