- Non-stimulating
- Great alternative to caffeine and ephedrine

Usage: Take 2 - 6 capsules daily, on an empty stomach
immediately before training, preferably with juice as a
carbohydrate source, or as directed by your qualified health
consultant. Note: Do not take in conjunction with MAO inhibitor
drugs.

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 from
microbiological fermentation. It is NOT derived from milk.

L Tyrosine is vital in supporting the neurotransmitters  
("messagers" that carry signals between brain cells). As much as
90% of your brains's neurotransmitters are synthesized directly
from tyrosine. This is important because neurotransmitters carry
the messages that tell your muscle to flex or relax. The stronger
the signal the stronger your performance. Another big plus:
tyrosine may promote alertness without unwanted
central-nervous-system (CNS) side effects unlike ephedrine.
Some research suggest that adding just 500mg of tyrosine to any
type of  CNS stimulant may enhance their "pep" effect. For most
cases to improve focus in training 2-3g prior training is
recommended.

Scientific References
1. Aviat. Space Environ. Med 66.4, 1995:313-19. The effect of
Tyrosine on Cognitive Performance During Extended
Wakefullness. D. F. Neri, et al.

2. Life Sci. 22 1978: 1399-1406. Physiological Control of Brain
Norepinepherine synthesis by Brain Tyrosine Concentration. C.J
Gibson and R J Wurtman.

3. Pharmacol Biochem Behav. 1999 Nov;64(3):495-500. Tyrosine
improves working memory in a multitasking environment.
Thomas JR, Lockwood PA, Singh A, Deuster PA.

4. Brain Res Bull. 1999 Jan 15;48(2):203-9. Tyrosine improves
cognitive performance and reduces blood pressure in cadets
after one week of a combat training course. Deijen JB, Wientjes
CJ, Vullinghs HF, Cloin PA, Langefeld JJ.
Supplement Facts
Serving size: 1 Capsule
Servings Per Container: 100

Amount Per Serving   
L-Tyrosine : 500mg

Other Ingredients: Rice powder and
magnesium stearate. Capsule consists of
gelatin. Contains NO common allergen
Jarrow's Formula's
Tyrosine 500 100 Caps
1000mg per Cap
Introductory Price: $20