Beta-Alanine, or rather beta-alanine and 3-aminopropanoic acid, is also considered the only naturally occurring beta amino acid, despite being part of larger bioactive molecules like beta-peptides. Beta-alanine is a rate limiting precursor to the dipeptide carnosine, which means that carnosine levels depend on the available amounts of beta-alanine. Carnosine is abundant in brain tissues and muscles. It has been observed that supplementation with Beta Alanine in fact does increase the levels of carnosine, which resulted in athletes experiencing less fatigue and allowing them to boost the amount of muscular work, i.e. the training that can be done. In clinical trials conducted over ten weeks with supplementing Beta Alanine to test subjects, intramuscular carnosine levels were measured at eighty per cent higher levels than before the test.

Citrulline Malate is a combination of citrulline and malate. It is showing strong evidence of improving muscle weakness. This is beneficial for those involved in bodybuilding as a muscle strengthener.

L-Glutamine- Glutamine is an amino acid which is responsible for a multitude of biochemical functions in humans. L-Glutamine is generally found in dietary sources such as chicken, beef, eggs, milk and dairy products, fish, spinach, wheat, parsley, cabbages, beans and beets. Glutamine is apparently the most common amino acid occurring naturally, furthermore this non essential amino acid is one of just a few, which are able to directly cross the blood brain barrier. In the human body, L-Glutamine is found in the skeletal muscles, but also in the blood. Besides the vital biological functions, such as fuel for brain, blocking cortisol induced protein catabolism, immune function assistance, protein synthesis and in DNA synthesis, L-Glutamine is used as a supplement for ailing and injured, improving recovery, but also as muscle growth agent in body building and athletic circles.

L-Isoleucine is an essential alpha-amino acid that is considered both, a ketogenic and a glucogenic amino acid. Since that L-Isoleucine is an essential amino acid, it cannot be synthesized by the body, therefore it needs to be ingested. The primary source of L-Isoleucine is as a component of proteins. It has become a prominent component of nutritional supplements, mostly with the body building and similar athletic communities, where it is believed that L-Isoleucine has the capability to increase endurance, but also to repair muscle tissue. It has been observed that L-Isoleucine ingestion allows power athletes to recover easier from very tough trainings and exhausting activities. This branched chain amino acid is one of the three main BCAA in the body, the other ones being valine and leucine.

L-Leucine- Leucine is a hydrophobic essential alpha amino acid, which as an additive under the name L-Leucine has an E number E641, which classifies this amino acid as a flavor enhancer. The natural source of leucine includes whole wheat products, several species of nuts and brown rice. L-Leucine is one of the most abundant amino acids found in skeletal muscle tissues. L-Leucine became in recent times a very popular dietary supplement, particularly with the body building communities, because of the evidence that it slows down the degradation of muscle tissue in rats by elevating the production of muscle proteins. There are additional claims in circulation, which state that L-Leucine also controls the nitrogen balance and aids to the mental and cognitive abilities during high power workouts.

L-Valine is an amino acid in combination with L-Leucine and L-Isoleucine. These amino acids maintain everyday life and offer maximum support. L-Valine is acquired from vegetable and animal protein. L-Valine regulates the immune system and is involved in the protein synthesis and glucose metabolism. L-Valine is effective in muscle growth as well as tissue repair. L-Valine is a part of the muscle metabolism and is also effective in the nitrogen balance in the body. L-Valine is found in the muscles in high concentration, but this cannot be done on its own in the body and has to be acquired through dietary or food supplements. L-Valine has stimulating effect and maintains the nitrogen in the body. It is effective for repair as well as growth of tissues and for muscle metabolism. Adhering to the label directions is highly recommended. This is normally safe and has no side effect until now. However, for the dietary supplement consulting the physician before use is the best.