Most of them really do not do too much for.... I am on an amino acid right now - and it is unlike anything I have taken before!!!!! It is called GH Sport... you can google it and find their website... It is the only amino acid combo that is NSF Certified - which means that it is legal and approved for all professional & amateur athletics - such as NFL, MLB, & the IOC..... And yes, I am a distributor but check it out online yourself and see.... I am not trying to sell this. I take the product myself and it is great.. Even has a 90 day money back guarantee...... It is made by Somalife..... look into it....