L-Tyrosine 500 mg

L-Tyrosine 500 mg

The Vitamin Shoppe4.8 (90 ratings)
Format:Capsule Quantity: 300 Capsule(s) · 300 servings
Goals
$32.99 $0.10 per serving

About this product

Free-form L-tyrosine at 500 mg provides focused catecholamine-precursor support in a convenient capsule. Vitamin B6 adds a relevant neurotransmitter cofactor, and value is strong across the large supply.

The amount is at the lower end of useful acute-stress intake and purity details are missing. Benefits are most relevant during acute stress, sleep loss, or demanding work rather than as broad daily brain support.

It fits adults seeking situational support for attention and working performance. Users wanting memory, structural, or long-term neuroprotective coverage need a broader formula.

Who is it for
  • adults seeking situational support for attention and working performance
  • Adults who understand the formula’s focused role
  • Users comfortable with the stated limitations
Best for
  • Acute mental-demand support
  • Situational focus support
  • 500 mg L-tyrosine use

Pros

  • Clearly disclosed 500 mg amount
  • Preferred L-tyrosine form
  • Strong across the large supply practical value

Cons

  • The amount is at the lower end of useful acute-stress intake and purity details are missing
  • Situational rather than broad brain support
  • No complementary memory or structural nutrients

Warnings

  • L-tyrosine may conflict with levodopa, MAO inhibitors, or thyroid-hormone treatment
  • People with hyperthyroidism should avoid unsupervised tyrosine use
  • Tyrosine can feel stimulating or cause digestive upset in sensitive users

Product analysis

82 out of 100
The core formula provides a clearly defined role with practical strengths. The amount is at the lower end of useful acute-stress intake and purity details are missing.

AI assessment of the formula, label and price. How scoring works

Nutrient quality86

L-tyrosine is paired with a relevant vitamin B6 cofactor at useful amounts. The formula is focused, though the vitamin B6 amount is high relative to daily need.

Ingredient transparency85

Both active ingredients have exact amounts and no proprietary blend hides the formula. Full intake directions and the non-active ingredient list are not present in the supplied details.

Customer satisfaction64

The aggregate rating is very strong, but the modest review volume limits confidence. No detailed feedback is supplied to assess recurring complaints or purpose-specific experiences.

Value for money89

A focused formula and large number of servings support strong value. The relevant cofactor adds usefulness without materially inflating the formula.

Format
Capsule
Container
300 Capsule(s)
Per serving
$0.10
Customer rating
4.8 · 90 ratings
Report analysis

Goals

Brain Health
Impact
High effect
B+ Ingredient FitD PathwaysA EvidenceA+ Formulation Logic
Vitamin B6 · 10 mg
Study evidence
Tyrosine Supportive 7 studies
Vitamin B6 Supportive 29 studies

Ingredients

IngredientAmount per servingScore
Vitamin B6 (Pyridoxine Hydrochloride)
10 mg
L-Tyrosine
500 mg 84
Gluten Free Adults 18–50 Dairy Free Sugar Free
Report overview
Tyrosine · 500 mg OverallScore84
B- Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyB+ Value
The label clearly lists 500 mg of L-Tyrosine per serving, within the supplied range. The saved information includes no quality grade, GMP claim, independent purity testing, or fermentation details. Its cost per gram is modest, while the active form and amount are plainly stated.
How this ingredient is rated

Active Ingredient Quality & Bioavailability70

The label names L-Tyrosine, but the saved facts contain no raw-material quality or sourcing signal.
Tyrosine Chemical Form
The label identifies the form as L-Tyrosine.
Purity and Sourcing Signals
No quality grade, GMP claim, purity testing, or fermentation detail appears in the saved facts.

Dose, Safety & Label Transparency100

The amount is clearly listed and falls within the supplied range for cognitive support.
Tyrosine Dosage Adequacy
Each serving lists 500 mg, within the supplied 500–1,500 mg range.
Label Transparency and Blends
The label gives a clear milligram amount for standalone Tyrosine.

Value80

The cost per gram is moderate based on the saved figures.
Price per Gram of Tyrosine
The saved figures indicate a moderate cost per gram.
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Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. Effect of tyrosine supplementation on clinical and healthy populations under stress or cognitive demands--A review.
    Jongkees BJ; Hommel B; Kühn S; Colzato LS · Journal of psychiatric research · 2016
    Narrative reviewBrain Health forTyrosine
  2. Baseline-dependent effect of dopamine's precursor L-tyrosine on working memory gating but not updating.
    Jongkees BJ · Cognitive, affective & behavioral neuroscience · 2021
    Randomized trial45 participantsBrain Health forTyrosine
  3. Dietary Tyrosine Intake (FFQ) Is Associated with Locus Coeruleus, Attention and Grey Matter Maintenance: An MRI Structural Study on 398 Healthy Individuals of the Berlin Aging Study-II.
    Plini ERG; Melnychuk MC; Harkin A; Dahl MJ; McAuslan M; Kühn S; Boyle RT; Whelan R; Andrews R; Düzel S; Drewelies J; Wagner GG; Lindenberger U; Norman K; Robertson IH; Dockree PM · The journal of nutrition, health & aging · 2023
    Cross-sectional study398 participantsBrain Health forTyrosine
  4. Combined L-carnosine and L-tyrosine supplementation as an ergogenic strategy for physical and cognitive performance under fatigue in professional football players.
    Bilgin S; Bozyılan E; Buzdağlı Y; Karaç Öcal Y; Gürkan O; Toktaş S; İnan H; Egil İ; Yarayan YE · Frontiers in nutrition · 2026
    Randomized trial24 participantsBrain Health forTyrosine
  5. Influence of nutritional tyrosine on cognition and functional connectivity in healthy old humans.
    Hensel C; Becker M; Düzel S; Demuth I; Norman K; Steinhagen-Thiessen E; Gallinat J; Lindenberger U; Kühn S · NeuroImage · 2019
    Cross-sectional study286 participantsBrain Health forTyrosine
  6. Vitamin B12, B6, or Folate and Cognitive Function in Community-Dwelling Older Adults: A Systematic Review and Meta-Analysis.
    Zhang C; Luo J; Yuan C; Ding D · Journal of Alzheimer's disease : JAD · 2021
    Meta-analysis21 studies pooledBrain Health forVitamin B6
  7. Relationship between serum pyridoxal 5'-phosphate concentration and cognitive function in older Japanese.
    Itoh K; Kuwabara A; Otsuka R; Sugimoto T; Sakurai T; Niida S; Ao M; Tanaka K; Takenaka S; Kanouchi H · Journal of clinical biochemistry and nutrition · 2025
    Cross-sectional study266 participantsBrain Health forVitamin B6
  8. A randomized, controlled trial to evaluate the efficacy of pyridoxine and ascorbic acid on cognitive function and quality of life in post-menopausal women.
    Dhivya K; Sarumathy S; Manigandan G · Naunyn-Schmiedeberg's archives of pharmacology · 2025
    Randomized trial180 participantsBrain Health forVitamin B6
  9. Lower Plasma Vitamin B-6 is Associated with 2-Year Cognitive Decline in the Boston Puerto Rican Health Study.
    Palacios N; Scott T; Sahasrabudhe N; Gao X; Tucker KL · The Journal of nutrition · 2020
    Cohort study949 participantsBrain Health forVitamin B6
  10. Are Dietary Supplements and Nutraceuticals Effective for Musculoskeletal Health and Cognitive Function? A Scoping Review.
    Iolascon G; Gimigliano R; Bianco M; De Sire A; Moretti A; Giusti A; Malavolta N; Migliaccio S; Migliore A; Napoli N; Piscitelli P; Resmini G; Tarantino U; Gimigliano F · The journal of nutrition, health & aging · 2017
    Scoping review12 studies pooledBrain Health forVitamin B6