Net Contents
100 Capsule(s)
Serving Size
1 Capsule(s)
Servings Per Container
100
Supplement Form
Capsule
Bar Code (UPC/SKU)
7 90011 15001 5
Product Version
05119LTS PROD # 115001
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: Gluten-Free.
This analysis is generated algorithmically from label data for educational reference only. It is not a product endorsement, ranking, or medical advice.
Allergen Guide
Free From
- Wheat
Allergen flags are parsed automatically from the official label's claims and statements. Always verify against the physical product label before use, especially if you have a severe allergy.
Supplement Facts
Serving Size: 1 Capsule(s) · 1–2 per day
| Ingredient | Amount Per Serving | |
|---|---|---|
| L-Tyrosine | 500 mg | — |
Not Present
Other Ingredients
Target Groups
Label Claims
Directions & Suggested Use
Suggested/Recommended/Usage/Directions
Usage: Take 1 capsule 1 or 2 times per day on an empty stomach, immediately after arising in the morning, preferably with juice as a carbohydrate source or as directed by your qualified healthcare professional.
Warnings & Precautions
Precautions re: Pregnant or Nursing or Prescription Medications
Note: If you have a medical condition (especially bipolar or a history of malignant melanoma), are pregnant, lactating, trying to conceive, under the age of 18, or taking medications (especially MAO inhibitors), consult your healthcare professional before using this product.
Precautions re: Children
Note: If you have a medical condition (especially bipolar or a history of malignant melanoma), are pregnant, lactating, trying to conceive, under the age of 18, or taking medications (especially MAO inhibitors), consult your healthcare professional before using this product.
Precautions re: Children
Keep out of the reach of children.
Storage
Storage
Store in a cool, dry place.
Formulation
Formula re: Contains
L-Tyrosine, a constituent of dietary protein, is a substrateor precursor to the catecholamine neurotransmitters norepinephrine, epinephrine and dopamine, the levels of which can be affected by the amount of tyrosine consumed. Jarrow Formulas L-Tyrosine contains pure crystalline L-Tyrosine.
Formula re: Contains
Free form amino acid
Formulation re: Other
Supports synthesis of brain neurotransmitters
Formulation re: Does NOT Contain
No wheat, gluten, soybeans, dairy, egg, fish/shellfish, or peanuts/tree nuts.
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
Dietary Supplement
Other Label Statements
Brand IP Statement(s) re: (c), (TM), (SM)
2019 Jarrow Formulas
Manufacturer & Distributor
Distributor
Jarrow Formulas Superior Nutrition and Formulation
Los Angeles, CA, 90035-4317
(866) 459-4154
Market Reference
Jarrow Formulas L- Tyrosine 500 mg 100 Capsules
iHerb4.8(1300)$14.67
L-Tyrosine 500 mg
Curated Wellness4.8(1300)$19.49
Now Supplements L- Tyrosine 500 mg 120 Capsules
Walmart4.7(9200)$13.99Lowest
Jarrow Formulas Neuro Optimiser Capsules
The Healthy Place4.8(1400)$45.04
Jarrow Formulas N-Acetyl Tyrosine 350mg 120 capsules
Mercato.com4.5(26)$23.49
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.
The Vitamin Shoppe
4.5 (99)Vitamin & supplements store
3801 Pelandale Ave B-1, Modesto, CA 95356
GNC
4.1 (42)Vitamin & supplements store
2401 E Orangeburg Ave, Modesto, CA 95355
Max Muscle Nutrition
4.9 (124)Vitamin & supplements store
3250 Dale Rd Ste M1, Modesto, CA 95356
Vida divina
5.0 (1)Vitamin & supplements store
1606 Crows Landing Rd, Modesto, CA 95358
Mid Valley Nutrition
4.9 (16)Nutritionist
334 N Center St, Turlock, CA 95380
G-Unit Nutrition
5.0 (3)Health and beauty shop
111 Drake Ave, Modesto, CA 95350
GNC
4.4 (23)Vitamin & supplements store
2441 Claribel Rd Unit G, Riverbank, CA 95367
GNC
4.0 (20)Vitamin & supplements store
2888 Geer Rd, Turlock, CA 95382
Research & Studies
THE MOOD CURE
TOT CHARGE - tantor-site-assets.s3.amazonaws …
… of 500–1,000 mg L-tyrosine and 500–1,000 mg L-phenylalanine. (Try True Energy by NOW for a combination formula.… -7339293 or consult an experienced alternative health practitioner. …
Dose-dependent effects of oral tyrosine administration on plasma tyrosine levels and cognition in aging
O Van de Rest, M Bloemendaal, R De Heus, E Aarts - Nutrients, 2017 - mdpi.com
The effects of tyrosine on plasma response and cognition in aging are unknown. We assessed the dose-dependent response to tyrosine administration in older adults in both plasma …
201746 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 …
201573 citationsWeighty Issues
T Person - wholefoodsmagazine.com
… the struggle we all go through to retain that healthy state. The … marketing consultant for Jarrow Formulas, Los Angeles, CA. … Thyroid support nutrients include iodine, l-tyrosine and guggul …
1 citationsYou're on the Air with Dr. Fratellone: Answers to Questions Most Frequently Asked about Supplements and Herbs for the Heart
P Fratellone - 2004 - books.google.com
… Jarrow Formulas® makes a 300-mg timed-release tablet, … when taking Lphenylalanine and L-tyrosine, as they can both … on vitamin supplements and herbs to promote a healthy heart…
2004Personalized Genetic Health Report
WD Crick - 2026 - wholegene.health
… Evidence-Based Support: Clinical observations suggest individuals with this variant may benefit from L-tyrosine (500-1000mg in the morning) as a dopamine precursor[17]. Rhodiola …
2026
Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2021-03-25. DSLD Label ID: 243374. 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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