Net Contents
100 Capsule(s)
Serving Size
1–4 Capsule(s)
Servings Per Container
100
Supplement Form
Capsule
Bar Code (UPC/SKU)
7 45287 06050 6
Product Version
TYR
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.
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: 1–4 Capsule(s) · 1 per day
| Ingredient | Amount Per Serving | |
|---|---|---|
| L-Tyrosine(L-Tyrosine) | 800 mg | — |
Not Present
Other Ingredients
Target Groups
Label Claims
Directions & Suggested Use
Suggested/Recommended/Usage/Directions
Suggested Use: As a dietary supplement, adults take 1 to 4 capsules daily between meals or as directed by physician.
Suggested/Recommended/Usage/Directions
It is recommended that this product be taken in conjunction with vitamins and minerals.
Warnings & Precautions
Precautions re: All Other
Do not take with dairy products.
Precautions re: Children
KEEP OUT OF REACH OF CHILDREN.
Precautions re: All Other
Tamper resistant package, do not use if outer seal is missing.
Storage
Storage
For optimal storage conditions, store in a cool, dry place. (59°-77°F/15°-25°C) (35-65% relative humidity)
FDA Statements
FDA Statement of Identity
A Dietary Supplement
Other Label Statements
General: Product/Version Code
TYR
Manufacturer & Distributor
Distributor
Douglas Laboratories
600 Boyce Road, Pittsburgh, PA, 15205, USA
1.800.245.4440
Market Reference
Pure Encapsulations L- Tyrosine 90 Capsules
Pure For You4.7(56)$34.00Now Supplements, L-Tyrosine 500 mg, Supports Mental Alertness*, Neurotransmitter Support*, 120 Capsules
Walmart4.5(36)$13.99GNC L- Tyrosine 500Mg Caplets
GNC4.7(7)$19.99Nutricost L- Tyrosine 500mg 180 Capsules (2 Bottles)
Target4.8(197)$14.95365 by Whole Foods Market L Tyrosine 500 Mg 100 Capsules
Whole Foods Market$14.49Nature's Craft L-Tyrosine
Macy's4.8(154)$15.99Jarrow Formulas L- Tyrosine 500 mg 100 Capsules
Walmart4.8(1300)$17.57Puritan's Pride L- Tyrosine 500 mg 100 Capsules
Puritan's Pride4.7(31)$7.19Lowest
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.
ITL Health
5.0 (37)Vitamin & Supplements Shop
50 Broadway, London SW1H 0BL
Aphro-D
4.9 (82)Vitamin & Supplements Shop
27 Old Gloucester St, London WC1N 3AF
Protiv Nutrition
5.0 (1)Vitamin & Supplements Shop
3rd Floor, 207 Regent St., London W1B 3HH
Holland & Barrett - Strand
3.7 (51)Vitamin & Supplements Shop
406-408 Strand, London WC2R 0NE
Arbor Vitamins
5.0 (13)Vitamin & Supplements Shop
128 City Rd, London EC1V 2NX
Nayble Health & Sports
5.0 (139)Vitamin & Supplements Shop
18 Chamberlayne Rd, London NW10 3JD
WarriorsLab Supplements And Whey Protein
5.0 (2)Vitamin & Supplements Shop
71-75 Shelton St, London WC2H 9JQ
RightNutri
4.9 (78)Vitamin & Supplements Shop
26 Queenstown Rd, London SW8 3RX
Research & Studies
Effect of tyrosine supplementation on clinical and healthy populations under stress or cognitive demands—A review
BJ Jongkees, B Hommel, S Kühn, LS Colzato - Journal of psychiatric …, 2015 - Elsevier
… and when TYR supplementation can be beneficial for performance. The potential of using TYR supplementation to treat clinical disorders seems limited and its benefits are likely …
2015263 citationsHypothyroidism & Nutritional Supplements
L McNamara - drladdvip.com
… medical disclaimer below, and consult your personal physician prior to taking supplements … The amino acid L-Tyrosine and DHEA can be purchased from Douglas Labs by first creating …
Ingestion of tyrosine: effects on endurance, muscle strength, and anaerobic performance
EE Sutton, MR Coll, PA Deuster - … journal of sport …, 2005 - journals.humankinetics.com
… The results indicate that acute ingestion of tyrosine by healthy men has no … of L-tyrosine, a 7% glucose polymer solution (GPS) or a combination of tyrosine with GPS and L-tyrosine. …
200573 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
… Produced in the liver and to some extent the brain, l-tyrosine is synthesized via hydroxylation of phenylalanine, an essential amino acid. Furthermore, l-tyrosine is the precursor of the …
201575 citationsEffects of tyrosine on Parkinson's disease: a randomized, double‐blind, placebo‐controlled trial
J DiFrancisco‐Donoghue, E Rabin… - Movement Disorders …, 2014 - Wiley Online Library
… l-tyrosine will increase plasma tyrosine and plasma NE. Furthermore, we hypothesized that l-tyrosine … All participants were prescreened by a medical professional and were diagnosed …
201423 citationsWhole-body nitrogen and tyrosine metabolism in surgical patients receiving branched-chain amino acid solutions
SP Desai, BR Bistrian, LL Moldawer… - Archives of …, 1985 - jamanetwork.com
• Fifteen patients undergoing gastric bypass surgery for morbid obesity received preoperatively a standard crystalline amino acid solution containing 15.6% branched-chain amino acids…
198516 citations
Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2012-04-26. DSLD Label ID: 8055. 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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