Thorne Research L-Tyrosine 500 mg. - 90 Vegetarian Capsules Tyrosine is an amino acid precursor for synthesis of the neurotransmitters norepinephrine and dopamine. By improving the rate of neurotransmitter synthesis, tyrosine stimulates the central nervous system. It appears to function as an adaptogen by relieving physical symptoms of stress, such as mood swings. Chronically stressed individuals may not efficiently convert phenylalanine to tyrosine, making supplementation with tyrosine desirable. Tyrosine also serves as a precursor for the thyroid hormone thyroxine and melanin, the pigment responsible for skin and hair color and protection against harmful ultraviolet rays. In addition, tyrosine stimulates growth hormone and is involved in adrenal and pituitary function. Tyrosine is also a powerful antioxidant, scavenging and neutralizing free radicals and inhibiting fat oxidation. important nutrient for healthy adrenal function supports the thyroid gland promotes a positive mental state and healthy stress management contains no preservatives, magnesium stearate, or other lubricants and diluents Dr. Michael Lebowitz D.C. Recommends: Dr. Michael Lebowitz D.C. screens all patients suffering from fatigue, allergies or immune disorders, and addictions for L-Tyrosine. It is necessary for both norepinephrine and enkephalin synthesis. Because of this, many patients with food sensitivities, low energy, low pain threshold, depression, and addiction to foods, chemicals, drugs are low in L-Tyrosine. Almost every environmentally ill patient tests for this or Iodine-Tyrosine at some point in his or her treatment program. Overweight patients benefit from it and approximately 60 percent of female patients ages 30 and up test positive. It often brings dramatic clinical improvement. Most patients who suffer from the depression type where they want to be left alone and more or less hide, test positive on it. Dr. Michael Lebowitz D.C.