N-Acetyl L-Tyrosine vs. L-Tyrosine: N-Acetyl l-Tyrosine is an acetylated derivative of amino acid L-Tyrosine. Acetylation enhances the solubility and stability of L-tyrosine. So, N-acetyl L-tyrosine possesses better bioavailability and water solubility than L-Tyrosine itself. It is more efficient than L-tyrosine. L-Tyrosine is a conditionally essential amino acid. L-Tyrosine can be converted by neurons in the brain and in the adrenal medulla of the adrenal glands to dopamine, norepinephrine (noradrenaline), and epinephrine neurotransmitters that are depleted by stress or overwork. By replenishing norepinephrine in the brain, mental energy levels are enhanced and a feeling of contentment often occurs. L-Tyrosine also aids in adrenal, thyroid and pituitary function. As a precursor of thyroid hormones thyroxin and melanin, L-Tyrosine plays an important role in controlling metabolic rate, not to mention skin health, mental health, and growth rate. L-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. Generally Suggested Use: For adult, to take 1 8 teaspoon (350mg) N-acetyl L-tyrosine powder 1 to 2 times daily with water or beverage, preferably between meals, or as recommended by a healthcare practitioner. Always start from lower daily dose till to reach a proper daily dose which is best to yourself. Or, for your formulation, R D, and your other purpose. If you want accurate serving amount, you'd better to use an accurate balance to measure it. Warning: People with thyroid disease, or those taking MAO inhibitors or other psychoactive medications should seek the advice of a physician before consuming L-Tyrosine. People with melanoma and migraine headaches should avoid taking L-Tyrosine. Supplemental use of L-Tyrosine may raise or normalize blood pressure. Insomnia may occur if taken too close to bedtime.

Fresh, Plus 1 to 1.5 years shelflife available. N-Acetyl L-Tyrosine pure powder, good for direct consumption, formulation, tableting, capsulation, health product R D (research and development), or your business purpose. White fine powder or crystalline powder Acidic Taste Soluble in water. Store in cool and dry place, keep away from strong light and heat. There is no any additive or filler inside. N-Acetyl L-Tyrosine 500g (1.1 lb, 17.6 oz) Pure Powder, AJI Quality Grade, Better Bioavailability and Solubility, Energy Ingredient.