L-Tyrosine is an amino acid which supports brain function. It can be converted by neurons in the brain into the neurotransmitters dopamine and norepinephrine (noradrenaline), hormones which are depleted by stress, excessive work and certain drugs. By replenishing norepinephrine in the brain, mental energy levels are enhanced and a feeling of contentment often occurs.
L-Tyrosine boosts certain neurotransmitters in the brain and has been used to support stress reduction and depression. L-Tyrosine is converted in the body into other key biologic compounds, including CoQ10, thyroid hormones and melanin.
Tyrosine can also enhance athletic performance. L-Tyrosine is an important component of protein and helps form the bioactive factors vital to cellular growth and maintenance. Tyrosine supplementation has the potential to increase athletic performance in a few ways. One of the mechanisms possibly contributing to fatigue during exercise is an increase in central serotonin levels and an increase in the ratio of serotonin to dopamine. Tyrosine may help decrease this ratio and compete with tryptophan (the amino acid precursor to serotonin) at the blood-brain barrier. Increased dopaminergic activity may decrease the perception of fatigue. Also, during highly stressful conditions, catecholamine levels can become depleted, and tyrosine may be particularly useful under these conditions.
NutraBio.com L-Tyrosine is pure free form crystalline amino acid from microbiological fermentation. It is NOT derived from milk. The B vitamins pyridoxine (B-6) and folic acid can assist in the conversion process.
Suggested Use: As a dietary supplement, take 1 or 2 scoop(s) (500 mg or 1000 mg) mixed into your favorite beverage on an empty stomach, or as directed by your physician. This powder may clump during storage which will not effect the quality.
WARNING: NOT INTENDED FOR USE BY PERSONS UNDER THE AGE OF 18. KEEP OUT OF THE REACH OF CHILDREN. If you are pregnant or breast feeding, consult your health care professional before using this product. People with known medical conditions and/or taking drugs should consult with a licensed physician and/or pharmacist prior to taking any dietary supplements. Do not take in conjunction with MAO inhibitor drugs. Not for use by persons with a history of malignant melanoma or if bipolar, pregnant, suspect pregnancy, or lactating. Tyrosine should not be taken by those with conditions associated with increased dopamine levels such as mania and schizophrenia. This supplement may increase sensitivity to the effects of CNS stimulants. Caution is advised when taking tyrosine along with stimulants and dosages should be lowered accordingly.
FREE Shipping Available: -on select brands -lightweight (Ronnie Coleman voice) orders over $50 -heavier orders over $100
Free shipping is NOT Available on Drinks.
Orders placed by 4pm PST will go out same business day.
Multiple shippers and transit times available at checkout.
To get most accurate shipping options please continue checkout process.
*free shipping is only valid on supplement orders under 20 lbs.