Amino acids have been around for decades & have been used by countless athletes. As supplements. they've stood the test of time. They've also been studied in great depth over the years. Research has shown that amino acids are anabolic but that the timing. dosages. & the mix of aminos are all very important. Animal Nitro has the right types of aminos (essential aminos). forms (uncoupled). dose (6g per pack). & the right blend of aminos. Because it consists of such fundamental. basic ingredients & offers so much nutritional flexibility. Animal Nitro is sure to become a staple for lifters everywhere.