Net Contents
4 Ounce(s)
Serving Size
350 mg
Servings Per Container
323
Supplement Form
Powder
Bar Code (UPC/SKU)
7 33739 00265 5
Product Version
CODE 0265 V10
Label Analysis
Objective insights generated automatically from the official DSLD label — a quick, factual read of how this product is formulated and disclosed.
Single-ingredient formula listed in Supplement Facts.
Every active ingredient discloses a specific amount per serving.
Label states: Non-GMO, Gluten-Free, Halal, Kosher.
This analysis is generated algorithmically from label data for educational reference only. It is not a product endorsement, ranking, or medical advice.
Supplement Facts
Serving Size: 350 mg · 1–3 per day
| Ingredient | Amount Per Serving | |
|---|---|---|
| L-Tyrosine | 350 mg | — |
Not Present
Target Groups
Label Claims
Directions & Suggested Use
Suggested/Recommended/Usage/Directions
Suggested Usage: Mix 1/4 level teaspoon in juice or water, preferably between meals, 1 to 3 times daily.
Warnings & Precautions
Precautions re: Children
Caution: For adults only.
Precautions re: Pregnant or Nursing or Prescription Medications
Consult physician if pregnant/nursing, taking medication, or have a medical condition. Persons with thyroid disease (hyperthyroidism), melanoma, or those taking MAO inhibitors or other mood altering medications should seek the advice of a physician before consuming this product.
Precautions re: Children
Keep out of reach of children.
Precautions re: Allergies
Not manufactured with wheat, gluten, soy, corn, milk, egg, fish, shellfish, tree nut or sesame ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.
Storage
Storage
This product is sold by weight not volume. Store in a cool, dry place after opening.
Formulation
Formula re: Contains
Tyrosine is a conditionally indispensable amino acid required for the production of the neurotransmitters dopamine, adrenaline, and noradrenaline, as well as for the skin pigment, melanin. Noradrenaline (norepinephrine) and adrenaline (epinephrine) are the main actors in the body’s response to acute stress and, along with dopamine, help to support a positive mood and mental alertness. In addition, tyrosine is especially critical for the normal function of the thyroid gland.
Formula re: Contains
Pure Powder
Formulation re: Other
Neurotransmitter Support Pharmaceutical Grade Healthy Glandular Function Supports Mental Alertness
Formulation re: Does NOT Contain
Non-GMO
Formula re: Kosher
Triangle K (Kosher)
Formulation re: Does NOT Contain
Not manufactured with wheat, gluten, soy, corn, milk, egg, fish, shellfish, tree nut or sesame ingredients.
Formula re: Contains
NOW L-Tyrosine is Pharmaceutical Grade.
Formulation re: Other
Packaged and quality tested in the USA. Natural color variation may occur in this product.
Formula re: Type
Crescent H (Halal)
FDA Statements
FDA Disclaimer Statement
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.
FDA Statement of Identity
A Dietary Supplement
Other Label Statements
Seals/Symbols
Triangle K (Kosher)
General Statements: All Other Content
Amino Acids Family owned since 1968.
Seals/Symbols
GMP Quality Assured Crescent H (Halal)
General Statements: All Other Content
This bottle is made from 100% PCR (post-consumer recycled) resin.
Manufacturer & Distributor
Packager
NOW Foods
395 S. Glen Ellyn Rd., Bloomingdale, IL, 60108, USA
Market Reference
Now Supplements, L-Tyrosine 500 mg, Supports Mental Alertness*, Neurotransmitter Support*, 120 Capsules
Walmart4.5(36)$13.99L-Tyrosine Now Foods
iHerb4.7(9300)$11.01Now Foods L- Tyrosine 750 mg 90 Capsules
Walmart4.7(2700)$13.59NOW L- Tyrosine 500 mg Capsules
Vitamart.ca4.8(35)$14.88Now Foods L- Tyrosine Powder
Muscle & Strength4.7(422)$8.99Now Foods L-Tyrosine 500 Mg - 2 x 120 Capsule Bottles TWINPACK
DPS Nutrition4.7(9300)$16.99Nature's Craft L-Tyrosine
Target4.8(154)$15.99NOW | 5-HTP 200mg With L-Tyrosine 60 Capsules
Vitamart.ca4.8(20)$21.97
Where to Buy Locally
Enter your city or ZIP code to find supplement & health stores in your area that may carry this product.
Showing representative supplement & health retailers — search above for stores in your area.
NutriLx Store
4.9 (135)Vitamin & supplements store
Loja 1 dentro da Estação Metro Campo Pequeno, Av. da República 63B, 1050-189 Lisboa
PrimeBody (Arroios)
4.8 (193)Vitamin & supplements store
R. Passos Manuel 83B, 1150-258 Lisboa
NUTRITECH
5.0 (55)Sports nutrition store
R. Capelo e Ivens 94, 2000-039 Santarém
Research & Studies
Tyrosine: food supplement or therapeutic agent?
HA Tyrrell - Journal of nutritional & environmental medicine, 1998 - Taylor & Francis
… of Pharmacy and Allied Health Sciences, Boston, MA, USA L-Tyrosine occupies a central … This has led to studies investigating the potential usefulness of supplementary tyrosine for …
199811 citationsTyrosine for mitigating stress and enhancing performance in healthy adult humans, a rapid evidence assessment of the literature
S Attipoe, SA Zeno, C Lee, C Crawford… - Military …, 2015 - academic.oup.com
… Objective: Determine whether supplemental tyrosine mitigates stress-… , l-tyrosine is synthesized via hydroxylation of phenylalanine, an essential amino acid. Furthermore, l-tyrosine is the …
201575 citationsl-Tyrosine to alleviate the effects of stress?
SN Young - Journal of Psychiatry and Neuroscience, 2007 - cdnsciencepub.com
… In one study, l-tyrosine was given at a dosage of 2 g per day for 5 days during a demanding … -term l-tyrosine use in healthy people is lacking. In one of the longest studies, 2.5 g l-tyrosine …
200763 citationsThe effect of tyrosine supplementation on whole-body endurance performance in physically active population: A systematic review and meta-analysis including …
LJF Solon-Júnior, DA Boullosa Alvarez… - Journal of Sports …, 2023 - Taylor & Francis
… The amino acid L-tyrosine (TYR), usually present in protein-rich foods, is the biochemical … during the supplementation period. The search strategy included studies of healthy men or …
20235 citationsDoes L-Tyrosine Improve Focus and Concentration?
BGTE Powder, L Powder, P Powder, NMNP Bulk… - sxytorganic.com
… MAO inhibitors, thyroid medications, or Levodopa should consult healthcare providers before using L-Tyrosine. From a supplement perspective, L-Tyrosine is often combined with other …
Tyrosine supplementation with high-protein diet as a therapeutic strategy for YARS1 deficiency
L Averdunk, K Konzett, H Mandel, T Linden, J Neveu… - Genetics in …, 2026 - Elsevier
… Given the positive cost/risk-benefit ratio, we advocate the therapeutic trial with tyrosine supplementation and high-protein diet for YARS1 deficiency. Further studies should aim to …
2026
Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2024-06-20. DSLD Label ID: 314456. This information is provided for educational reference only and is not medical advice. Always follow the product label and consult a doctor or pharmacist before use.
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