Citrulline is a non-essential, non-protein amino acid that forms during the urea cycle and forms ornithine when combined with carbon dioxide. Research has shown that Citrulline supplementation can increase your resistance and endurance training by increasing blood Arginine levels (even better than Arginine supplementation itself). You can expect improved muscle endurance, more blood flow/circulation, decreased muscle soreness and less fatigue during training.

Betaine acts as a methyl group donor to help reduce homocysteine levels and convert it into methionine. It has been suggested in clinical studies to improve muscle strength and power production. Betaine also increases levels of SAM-e, which have been linked to improved mood and cognitive function.

Tyrosine is a non-essential amino acid and a precursor for epinephrine and dopamine. These chemicals primarily produce alertness, increased energy and improved mental focus.

Alpha GPC raises levels of acetylcholine, a key chemical used for focus, learning and muscle contraction. Alpha GPC also supports the integrity of cellular membranes and is being studied for its purported performance enhancing properties in athletes.

Huperzine A is known as an enhancer of mental focus and energy due to its ability to prevent the breakdown breakdown of Acetylcholine.