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L- Tyrosine 500mg, 60 Caps, Vitazan

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A professional L-Tyrosine amino acid supplement.


  • Nutrients: L-Tyrosine
  • General Health

Feature Ingredients

  • L-Tyrosine 500 mg

Source of an amino acid involved in muscle protein synthesis. L-tyrosine supports stress management, performance during prolonged duration, enhances cognition and alertness during multitasking and sleep deprivation.

  • Brain & Mood: Tyrosine is the precursor for the neurotransmitters such as epinephrine, and norepinephrine, which are essential for mood, cognitive function and central nervous system function.1-4
  • Altitude: The most prevalent usage for supplemental tyrosine appears to be the enhancement of cognitive function and alertness under conditions of environmental stress such as sleep deprivation, multi-tasking in the workplace, and functioning at high altitudes and/or cold temperatures. It is noteworthy to mention that a high percentage of the studies done on tyrosine are conducted by the military looking to enhance focus and attention in their personnel.
  • ADD: Clinical trials with tyrosine have also been conducted with respect to attention deficit disorder (ADD).5,6
  • Other: Tyrosine is also the precursor for the formation of thyroid hormones as well as melanin, the skin and hair pigment.

Serving Size: 1 Vegetarian Capsule

Servings per Container: 

Medicinal Ingredients

Each Capsule Contains:


500 mg

Non Medicinal Ingredients

Vegetable magnesium stearate, microcrystalline cellulose, and silicon dioxide in a non‑GMO vegetable capsule composed of vegetable carbohydrate gum and purified water.


Contains No Added: wheat, yeast, gluten, artificial colouring or flavouring.

Recommended Use

Adults (19+): Take 1–2 capsules once daily or as directed by your health-care practitioner. For occasional use only.

Vitazan Advantage

Vitazan is a supplement company that is dedicated to research and high-quality products available through professionals only.


Do not use if you are hypersensitive or allergic to any of the ingredients;  pregnant or breast feeding nad or have a genetic metabolic disorder phenylketonuria (PKU)


Consult a health care practitioner prior to use if you are taking any *medications or if you have any pre-existing condition. Discontinue this product 2 weeks prior to surgery.

For prolonged use, consult a health care practitioner. Supplemental L-tyrosine may increase blood pressure or lead to difficulty sleeping in some persons. Consult a health care practitioner prior to use if you have hyperthyroidism, Graves’ disease or active melanoma, or if you are taking antidepressives and thyroid hormone medication, contraceptives or other psychoactive medications. Discontinue if you experience nausea, headache, fatigue, heartburn or joint pain.

Other drugs may interact with this product, including prescription and over-the-counter medicines, vitamins, and herbal products.

Side Effect Risks

Discontinue use and consult a healthcare practitioner if symptoms persist, worsen or you develop any reactions which may include: allergy or intolerance or digestive upset (constipation, nausea). Keep out of reach of children. Sealed for your protection. Do not use if seal is broken. For freshness, store in a cool, dry place.


The information and product descriptions that appear on this website are for information and educational purposes only and are not intended to provide or replace medical advice to individuals from qualified health care professionals. Consult your physician if you have any health concerns, and before initiating any new dietary, exercise, supplements or other lifestyle changes.


  1. Banderet LE, Lieberman HR. "Treatment with tyrosine, a neurotransmitter precursor, reduces environmental stress in humans." Brain Res Bull. 1989 Apr;22(4):759-62.
  2. Lieberman HR. "Tyrosine and Stress: Human and Animal Studies" Food Components to Enhance Performance, 1994:Pg 277-299.
  3. Thomas JR, Lockwood AP, Singh S and Deuster PA. "Tyrosine Improves Working Memory in a Multitasking Environment." Pharmacology Biochemistry and Behavior, Vol. 64, No. 3, pp 495-500, Feb 1999.
  4. Washington D.C.; National Academy PressNeri DF, et al. The Effects of Tyrosine on Cognitive Performance during Extended Wakefulness. Aviat Space Environ Med 66: 313-319, 1995Reimherr FW, et al. "An open trial of L-tyrosine in the treatment of attention deficit disorder, residual type." Am J Psychiatry. 1987 Aug;144(8):1071-3.
  5. Bornstein RA, Baker GB, Carroll A, King A, Wong JT, Douglass AB. "Plasma amino acids in attention deficit disorder." Psychiatry Res. 1990 Sep;33(3):301-6