Size: 100 Capsules

• Supports Synthesis of Brain Neurotransmitters
• Low Plasma Levels of Tyrosine Have Been Associated with Hypothyroidism
• Helps Mood Balance
• Important for Overall Metabolism

L-Tyrosine is utilized for the synthesis of catecholamine neurotransmitters, such as norepinephrine, epinephrine and dopamine. Jarrow FORMULAS L-Tyrosine is pure crystalline amino acid derived from microbiological fermentation. It is NOT derived from milk.

Symptoms of Tyrosine deficiency can also include low blood pressure, low body temperature (such as cold hands and feet) and restless leg syndrome. Tyrosine may be helpful against chronic fatigue, anxiety, mild depression, allergies and headaches.

Suggested Use: Take 1 to 2 capsules per day, on an empty stomach, immediately after arising in the morning, preferably with juice as a carbohydrate source, or as directed by your qualified health care consultant.

Caution: DO NOT take in conjunction with MAO inhibitor drugs. Not for use by persons with a history of malignant melanoma. DO NOT use if bipolar, pregnant, suspect pregnancy, or if you are lactating.

SUPPLEMENT FACTS
Serving Size: 1 Capsule
Servings Per Container: 100
Amount Per Serving / %DV
L-Tyrosine – 500mg / *
*Daily Value (DV) not established.

Other Ingredients: Rice flour, magnesium stearate (vegetable source), and silicon dioxide. Capsule consists of gelatin.

No wheat, no gluten, no dairy, no soybeans, no egg, no fish/shellfish, no peanuts/tree nuts.

1. Agharanya JC, Wurtman RJ. Effect of acute administration of large neutral and other amino acids on urinary excretion of catecholamines. Life Sci. 1982 Mar 1;30(9):739-46.
2. Alonso R, Gibson CJ, Wurtman RJ, Agharanya JC, Prieto L. Elevation of urinary catecholamines and their metabolites following tyrosine administration in humans. Biol Psychiatry. 1982 Jul;17(7):781-90.
3. Gelenberg AJ, Gibson CJ, Wojcik JD. Neurotransmitter precursors for the treatment of depression. Psychopharmacol Bull. 1982 Jan;18(1):7-18.
4. 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.
5. Neri DF, et al. The Effects of Tyrosine on Cognitive Performance during Extended Wakefulness. Aviat Space Environ Med 66: 313-319, 1995.
6. Banderet LE, Lieberman HR. "Treatment with tyrosine, a neurotransmitter precursor, reduces environmental stress in humans." Brain Res Bull. 1989 Apr;22(4):759-62.

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