Advance Glutamine is an excellent post workout amino supplement for recovery from heavy workout. It relieves muscle soreness and revitalizes for next workout. Glutamine is the most abundant amino acid (a building block for proteins) in the body and one of the best supplements for promoting recovery and lean muscle building. Strenuous exercise can lower glutamine levels causing stress to the body and immune system, but with proper glutamine supplementation you can help your body recover and rebuild faster. It is also good for your small intestines as well as for improving your immune system. Advance Glutamine is a pure Glutamine with no harmful additives. It is best when taken after your workout so that it helps in your recovery.