Brain cells communicate with each other via neurotransmitters (dopamine, serotonin, noradrenaline) or messengers of a biological message. Several building blocks are required for the synthesis of these neurotransmitters. One of the most important is tyrosine.


Tyrosine is necessary for the production of dopamine (motivation hormone) and significantly reduces the negative effects of stress. Tyrosine maintains focus during prolonged stress, improves memory and stimulates visual and auditory alertness.


  • Maintains focus during prolonged stress
  • Improves memory
  • Stimulates visual and auditory alertness



  • Bjork JM, Grant SJ, Chen G, Hommer DW. Dietary tyrosine/phenylalanine depletion effects on behavioral and brain signatures of human motivational processing. Neuropsychopharmacology. 2014 Feb;39(3):595-604.
  • Neri DF, Wiegmann D, Stanny RR, Shappell SA, McCardie A, McKay DL. The effects of tyrosine on cognitive performance during extended wakefulness. Aviat Space Environ Med. 1995 Apr;66(4):313-9.
  • Van Spronsen FJ, van Rijn M, Bekhof J, Koch R, Smit PG. Phenylketonuria: tyrosine supplementation in phenylalanine-restricted diets. Am J Clin Nutr. 2001 Feb;73(2):153-7.

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