Amino acid/Protein

L-Tyrosine Powder

by Source Naturals · Powder

Supplement facts from the label of L-Tyrosine Powder by Source Naturals: L-Tyrosine 660 mg.

Label of L-Tyrosine Powder, Source Naturals
Label image: NIH DSLD · full label (PDF)
Serving size0.67 Gram(s)
Servings per container149
Most servings a day on the label1
TypeAmino acid/Protein
Barcode021078001874
Label recordDSLD 274814 · entered 2022-11-22

Supplement Facts

IngredientPer serving% DVUpper limit (adults)
L-Tyrosine660 mg——

Upper limits: NIH ODS Fact Sheets for Health Professionals. Compared only where the unit converts and the limit applies to the form on the label.

On the label

For: Adult (18 - 50 Years) · Gluten Free · Dairy Free · Sugar Free

Claim types: Nutrient · All Other · Structure/Function

Formulation re: Other: Free-form powder

Formula re: Contains: L-Tyrosine is a free-form amino acid which crosses the blood-brain barrier. It is a precursor for the neurotransmitters dopamine, norepinephrine, and epinephrine, as well as for thyroid hormones and enkephalins, important peptides which ease messages of physical discomfort. L-Tyrosine is also a constituent of amino sugars (glycosaminoglycans), which play a role in numerous biological functions.

Suggested/Recommended/Usage/Directions: Suggested Use: 1/4 teaspoon daily, mixed with water or juice between meals.

Precautions re: Pregnant or Nursing or Prescription Medications: Not to be used with MAO inhibitor drugs. If you are pregnant, may become pregnant, or breastfeeding, consult your health care professional before using this product.

Precautions re: All Other: Do not use if either tamper-evident seal is broken or missing.

Precautions re: Children: Keep out of the reach of children.

This page repeats what the label says and the official upper limits for healthy adults. It is not medical advice: ask a doctor, pharmacist or registered dietitian about your own intake, especially if you are pregnant, take medicines or have a health condition.

Label data: NIH Office of Dietary Supplements, Dietary Supplement Label Database (dsld.od.nih.gov), public domain. Upper limits: NIH ODS Fact Sheets for Health Professionals (values from the Institute of Medicine, Food and Nutrition Board).