Amino bitter? Creatine?

Why do body builders take amino bitter?
What does it do for them?
Is it like a type of protein?
What does creatine do as powerfully?
I keep getting different answers of what they do, and I would approaching to know the truth.
Please tell me, if you know what they do.. resourcefully, I work at a thing surrounded by a gym, where I fashion smoothies and add protein, amino acerbic, and creatine them.
SO I have adjectives the answers to your questions.
a moment ago email me and I will tell you anything you inevitability.
my email is on my page. :D
it's kind of firm to explain but they promote growth of muscles and skeleton. Well thats why bodybuilders take them