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L-Tyrosine

  • Supports emotional well-being.‡
  • May support mood and promote sleep.‡
  • Supports the production of neurotransmitters which may support emotional well-being, especially under stress.‡

$21.00 or Original price was: $21.00.Current price is: $18.90. / month

(Subscriptions can be managed in your account and cancelled at any time without penalty.)

SKU 994 Category

Description

Nutritional support for positive mood, metabolism and for adrenal, thyroid and pituitary function. Tyrosine is a precursor of adrenaline and the neurotransmitters norepinephrine and dopamine, which regulate mood and stimulate metabolism and the nervous system.‡

 

 

Warning:  If you are pregnant or lactating woman, have any health conditions, or are taking any medication, make sure to consult your healthcare provider prior to use.

‡ These statements have not been evaluated by the Food and Drug Administration.
These products are not intended to diagnose, treat, cure or prevent any disease.

 

Ingredients

Dosage

One capsule three times daily.

Count

90 Capsules

Science

Hase A, Jung SE, aan het Rot M. Behavioral and cognitive effects of tyrosine intake in healthy human adults. Pharmacol Biochem Behav. 2015 Jun;133:1-6. doi: 10.1016/j.pbb.2015.03.008. Epub 2015 Mar 20. PMID: 25797188.

Jongkees BJ, Hommel B, Kühn S, Colzato LS. Effect of tyrosine supplementation on clinical and healthy populations under stress or cognitive demands–A review. J Psychiatr Res. 2015 Nov;70:50-7. doi: 10.1016/j.jpsychires.2015.08.014. Epub 2015 Aug 25. PMID: 26424423.

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. PMID: 7794222.

Belza A, Frandsen E, Kondrup J. Body fat loss achieved by stimulation of thermogenesis by a combination of bioactive food ingredients: a placebo-controlled, double-blind 8-week intervention in obese subjects. Int J Obes (Lond). 2007 Jan;31(1):121-30. doi: 10.1038/sj.ijo.0803351. Epub 2006 Apr 25. PMID: 16652130.

Bloemendaal M, Froböse MI, Wegman J, Zandbelt BB, van de Rest O, Cools R, Aarts E. Neuro-Cognitive Effects of Acute Tyrosine Administration on Reactive and Proactive Response Inhibition in Healthy Older Adults. eNeuro. 2018 Apr 30;5(2):ENEURO.0035-17.2018. doi: 10.1523/ENEURO.0035-17.2018. PMID: 30094335; PMCID: PMC6084775.

Steenbergen L, Sellaro R, Hommel B, Colzato LS. Tyrosine promotes cognitive flexibility: evidence from proactive vs. reactive control during task switching performance. Neuropsychologia. 2015 Mar;69:50-5. doi: 10.1016/j.neuropsychologia.2015.01.022. Epub 2015 Jan 16. PMID: 25598314.