Best L-Tyrosine 500 mg
100/100
This product looks safe
- No ingredients exceed tolerable upper intake levels
- 100% of ingredients have research evidence
A
Label Compliance Grade
Product Label
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Label Data
1 Capsule(s)
Serving Size
120
Servings
Amino acid/Protein
Product Type
100%
Evidence Coverage
Supplement Facts — Evidence Check
500 mg
📊 Market median: 500.0mg (223 products)
📚 22 studies (Tier A: 0, B: 1)
Other Ingredients
Modified Cellulose
Label Claims — Verification
❓
Structure/Function
All Other (98% of products)
Structure/Function (78% of products)
Nutrient (56% of products)
Target Groups
Adult (18 - 50 Years)
Gluten Free
Product Information
📋 Directions for Use
Suggested Adult Use: Take 1 capsule daily between meals, or more, as recommended by a nutritionally-informed physician.
🧪 Formulation Notes
Non-GMO Gluten Free
Additional Information
Tyrosine is a conditionally essential amino acid that is a precursor to the catecholamine transmitters dopamine, epinephrine, and norepinephrine. These are vital messengers for the brain and the body's other nerve networks. The thyroid gland also needs tyrosine to make the vital hormone thyroxine. Precursor for the nerve messengers dopamine, norepinephrine, and epinephrine (adrenaline) Precursors for thyroxine production by the thyroid gland
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BRAIN TRANSMITTER SUPPORT
Store in a cool dry palce.
YDRB316-1
Product Details
UPC / SKU
7 53950 00316 3
DSLD Entry Date
2015-03-25
Product Type
Amino acid/Protein
Form
Capsule
Brand
Doctor's Best
DSLD ID
43427
Data Updated
2026-04-11
Research Evidence
50
Research Sources
47
Avg Quality Score
28
Rct
13
Clinical Trial
5
Guideline
4
Systematic Review
A
Using a Novel Consensus-Based Chemoinformatics Approach to Predict ADMET Properties and Druglikeness of Tyrosine Kinase Inhibitors.
B
Australia and New Zealand consensus statement on the cardiovascular management of patients with chronic lymphocytic leukaemia treated with Bruton's tyrosine kinase inhibitors.
B
Branched-chain amino acid supplementation for improving growth and development in term and preterm neonates
B
[Clinical practice guideline on anaplastic lymphoma kinase-tyrosine kinase inhibitors for non-small cell lung cancer (2025 edition)].
B
[Chinese expert consensus on epidermal growth factor receptor tyrosine kinase inhibitors for the treatment of non-small cell lung cancer (2025 edition)].
B
Consensus Guideline for the Diagnosis and Treatment of Tyrosine Hydroxylase (TH) Deficiency.
B
Baseline-dependent effect of dopamine's precursor L-tyrosine on working memory gating but not updating
C
Attenuating Muscle Damage Biomarkers and Muscle Soreness After an Exercise-Induced Muscle Damage with Branched-Chain Amino Acid (BCAA) Supplementation: A Systematic Review and Meta-analysis with Meta-regression
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