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L-Tyrosine 500 mg

product on market Capsule Natural Grocers by Vitamin Cottage Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 100% of ingredients have research evidence
A Label Compliance Grade

What the Evidence Says

AI-generated · Qwen 3.6 · grounded in 1 source · methodology

L-tyrosine is a precursor to dopamine and norepinephrine, which may support cognitive performance during stressful conditions. Research provides moderate evidence that it helps maintain mental alertness under high-stress environments. The ingredient is generally well-tolerated and maintains a high safety profile.

AI-generated summary based on research evidence. Not medical advice.

Label

Product Label

Label for L-Tyrosine 500 mg
Open Full PDF View on NIH DSLD →
Details

Label Data

1 Vegetarian Capsule(s)
Serving Size
120
Servings
Amino acid/Protein
Product Type
100%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

500 mg
Market median: 500.0mg (223 products) 24 studies (A:0, B:1)

Other Ingredients

Cellulose Water Microcrystalline Cellulose Rice Bran Silica Stearic Acid
Claims

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Suggested Use: As a dietary supplement, adults take one (1) vegetarian capsule 1 to 3 times a day, preferably between meals, or as directed by a health care professional.

Warnings & Precautions

Caution: As with any supplement, consult your healthcare practitioner before using this product, especially if you are pregnant, nursing, or are under medical supervision for any reason.

Keep out of reach of children.

For serious adverse event reporting call (877) 455-2826

Formulation Notes

We only put our name on formulas that meet our unrivaled quality standards, and we continue raising the bar on these standards without raising the bar on your budget. Our supplements are GMP (Good Manufacturing Practices) certified, ingredient verified, screened for heavy metals, and formulated without questionable fillers, artificial colors, sweeteners, flavors, and other problematic ingredients. We scrutinize every detail, so you don't have to, because we are, and always have been, your Original good4u Grocers. To Your Health, - The Isely Family

Our supplements are GMP (Good Manufacturing Practices) certified, ingredient verified, screened for heavy metals, and formulated without questionable fillers, artificial colors, sweeteners, flavors, and other problematic ingredients.

Cognitive Support

GF

Vegetarian

Contains No: Sugar, salt, dairy, yeast, wheat, gluten, soy, preservatives, artificial colors or flavors.

Additional Information

Store in a cool, dry place and away from direct light.

GMP Good Manufacturing Practice

Made in USA

BPA free

Metadata

Product Details

UPC / SKU8 49327 00463 2
DSLD Entry Date2022-09-22
Product TypeAmino acid/Protein
FormCapsule
DSLD ID274033
Data Updated2026-04-11
Research

Research Evidence

50
Research Sources
47
Avg Quality
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.
Guideline International journal of molecular sciences 2025 PubMed DOI
B Australia and New Zealand consensus statement on the cardiovascular management of patients with chronic lymphocytic leukaemia treated with Bruton's tyrosine kinase inhibitors.
Guideline Internal medicine journal 2025 PubMed DOI
B Branched-chain amino acid supplementation for improving growth and development in term and preterm neonates
Systematic Review The Cochrane database of systematic reviews 2020 PubMed DOI
B [Clinical practice guideline on anaplastic lymphoma kinase-tyrosine kinase inhibitors for non-small cell lung cancer (2025 edition)].
Guideline Zhonghua zhong liu za zhi [Chinese journal of oncology] 2025 PubMed DOI
B [Chinese expert consensus on epidermal growth factor receptor tyrosine kinase inhibitors for the treatment of non-small cell lung cancer (2025 edition)].
Guideline Zhonghua yi xue za zhi 2025 PubMed DOI
B Consensus Guideline for the Diagnosis and Treatment of Tyrosine Hydroxylase (TH) Deficiency.
Guideline Journal of inherited metabolic disease 2025 PubMed DOI
B Baseline-dependent effect of dopamine's precursor L-tyrosine on working memory gating but not updating
Rct Cognitive, affective & behavioral neuroscience 2020 PubMed DOI
B Effect of Amino Acid Supplementation on Iron Regulation after Endurance Exercise
Rct Nutrients 2023 PubMed DOI
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
Systematic Review Sports medicine - open 2024 PubMed DOI
C The Effects of Green Tea Amino Acid L-Theanine Consumption on the Ability to Manage Stress and Anxiety Levels: a Systematic Review
Systematic Review Plant foods for human nutrition (Dordrecht, Netherlands) 2020 PubMed DOI
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.