Bro, any testimonial using this products....?....any side effects ....?....

I new this product from one of my friend who just having back from operation. He lost 3 finger on his right leg. All those days before taking this product seems so tired, I saw him like a dead men walking when he met me back 3 monts ago.
After he took this product he can now walk much more proper and seems more energetic. I'm impress of his health now and ask him the secret.
Actually, I'm not interested on MLM or whatsoever, but I want to take this product as thinking of the risk in future.