L-tyrosine is a non-essential amino acid synthesized in the body from phenylalanine, another amino acid. It is a precursor of adrenaline and of norepinephrine and dopamine, two “mood-regulating” neurotransmitters. These two neurotransmitters support the metabolism and the nerve system.

A number of studies suggest that L-tyrosine helps to postpone fatigue and provides extra energy. It also improves mental alertness and concentration during stressful situations. And sport is indeed a form of stress for the body. (1) (2) 

L-tyrosine optimizes the nerve impulse from the brain to the muscles helping you get more power.

L-tyrosine is often combined with caffeine in sport supplements because of their synergistic effects.

L-tyrosine is used as a key ingredient in SynTsize Pump.

SynTsize Pump SynTech Tyrosine

1) Neri DF, Wiegmann D, Stanny RR, et al. The effects of tyrosine on cognitive performance during extended wakefulness. Avit Space Environ Med. 1995;66:313-319
2) Deijen JB, Wientjes CJ, Vullinghs HF, et al. Tyrosine improves cognitive performance and reduces blood pressure in cadets after one week of a combat training course. Brain Res Bull. 1999;48:203-209