$72.99 $2.43 per serving
Product analysis
Neurolink combines ingredients that may support calming during short periods of stress. Lasting improvements in everyday mood, thinking or sleep remain uncertain, and several ingredients offer poor value at the serving price.
AI assessment of the formula, label and price. How scoring works
Nutrient Quality24
Most ingredient preparations are unspecified, so their quality cannot be compared confidently. The named B6 form alone does not establish a quality or effectiveness advantage for the full blend.
Ingredient Transparency68
Every ingredient amount is disclosed, helping compare the selected serving. Most ingredient forms are omitted, leaving preparation details unclear.
Value For Money24
Value is weak for several ingredients, particularly 5-HTP, tyrosine, glutamine and taurine. The uncertain value of B6 and inositol does not resolve that cost disadvantage.
Customer Satisfaction72
Customer feedback is very positive but comes from very few ratings. The small review base limits confidence about how broadly those experiences apply.
Product Focus43
The formula has a limited connection to calming under short-term stress, with less certain everyday mood and sleep benefits. The two-capsule serving information does not establish exposure or benefit under the longer daily directions.
- Format
Capsule - Container
- 180 Capsule(s)
- Per serving
- $2.43
- Customer rating
- 4.8 · 11 ratings
Goals
Impact
High effect
Vitamin B6 · 30 mg5-HTP · 150 mg
Vitamin B6 can help address deficiency associated with depressed mood or confusion, but its P-5-P form does not establish extra mood benefit. The formula also contains 5-HTP, GABA and L-tyrosine; the supplied context does not establish routine mood improvement from these ingredients in generally healthy adults. The saved amounts refer to a two-capsule serving, not the six-capsule daily directions, and do not establish exposure or benefit over time.
How this product is rated for Mood Support
Ingredient fit69
The formula contains ingredients connected to mood in the saved findings. Their amounts and the breadth of the formula affect that connection, with the specific limitations described below.
Goal fit
Mood-related ingredients share this formula with other actives, giving it a broader focus than mood alone.
Dose adequacy
The counted ingredients provide partial reference amounts per serving overall; those comparisons do not establish proven effective doses.
Pathways51
The strongest recorded connection is monoamine signalling, with partial ingredient coverage. The coverage is concentrated in this route.
Depth
The strongest recorded connection is monoamine signalling, with partial ingredient coverage.
Breadth
Only one mood-related route has substantial recorded coverage, so the overall reach remains narrow.
Evidence94
Vitamin B6 leads the recorded evidence finding, while the population and outcome limits described above still apply.
Evidence strength
Vitamin B6 leads the recorded evidence finding, while the population and outcome limits described above still apply.
Studied preparation
Most counted ingredients receive preparation recognition; L-tyrosine does not have that match.
Formulation logic100
The counted ingredients have no missing required partners or identified conflicts among those evaluated. Their amounts meet the minimum comparison.
Partner coverage
No required ingredient partner is missing for the counted ingredients.
Conflicts
None of the evaluated ingredient conflicts was identified; this finding does not assess all possible interactions.
Effective doses
All counted ingredients meet the minimum amount comparison; that does not establish a proven effective dose.
L-Tyrosine Not classified
No linked studies yet.
Impact
Moderate effect
Vitamin B6 · 30 mg
Tyrosine, at 400 mg, and B6, at 10 mg, relate to making brain messengers. The supplied evidence gives limited support for routine improvements in thinking, with tyrosine findings mainly concerning acute stress or sleep loss.
How this product is rated for Brain Health
Ingredient fit46
The saved findings identify 2 relevant ingredients alongside 5 other actives.
Goal fit
2 ingredients contribute to the saved goal-fit finding, while 5 other actives broaden its focus.
Dose adequacy
The saved amount assessment considers 2 ingredients against their individual references.
Pathways44
The main saved connection concerns brain messenger production.
Depth
Brain messenger production is the strongest saved area.
Breadth
Only brain messenger production reaches the saved coverage threshold.
Evidence92
Vitamin B6 supplies the strongest saved evidence finding, which must be read within the limits of the supplied research.
Evidence strength
Vitamin B6 leads the evidence finding among ingredients meeting the saved minimum amount reference.
Studied preparation
The saved assessment marks the preparations of 2 counted ingredients as meeting its evidence requirements.
Formulation logic100
The saved checks record no missing required partner or matched ingredient conflict.
Partner coverage
Each counted ingredient can contribute independently under the saved assessment or has its required partner.
Conflicts
No configured ingredient conflict is recorded.
Effective doses
All 2 counted ingredients meet the saved minimum amount threshold.
Impact
Moderate effect
The formula combines 5-HTP and vitamin B6 along a precursor-related sleep pathway, with GABA adding a possible calming contribution. These ingredients do not provide melatonin itself, and the precursor route does not establish a direct sleep benefit.
Taurine is listed at an amount too low to add meaningful support, while tyrosine is present below the amount associated with a bedtime conflict. The remaining listed actives do not add a sleep-related role.
How this product is rated for Sleep Support
Ingredient fit59
GABA, 5-HTP and B6 carry the sleep-related routes, while glutamine, inositol and tyrosine are outside that focus.
Goal fit
Three ingredients have sleep-related roles, joined by three other actives without a stated sleep contribution.
Dose adequacy
GABA, 5-HTP and B6 contribute at their listed amounts; 200 mg taurine is too low to add much.
Pathways50
The precursor pathway is strongest, with limited neural calming and no circadian-timing coverage.
Depth
The serotonin–melatonin precursor route is the clearest path.
Breadth
Only one of the three target routes is covered to a meaningful degree.
Evidence58
5-HTP has the strongest potential contribution, while GABA and B6 add supporting but limited routes.
Evidence strength
5-HTP has the strongest sleep-related role here, below melatonin's top potential.
Studied preparation
GABA and 5-HTP are listed as basic ingredients, and B6 is identified as pyridoxal 5-phosphate.
Formulation logic100
The credited ingredients can contribute independently, and the tyrosine amount does not trigger a bedtime conflict.
Partner coverage
Each credited ingredient can contribute without a missing partner.
Conflicts
The listed 400 mg tyrosine is below the amount treated as a bedtime activating concern.
Effective doses
The three credited ingredients contribute at their listed amounts; taurine does not add much.
Taurine Not classified
No linked studies yet.
Impact
Highest effect
GABA · 750 mgVitamin B6 · 30 mg
GABA provides a limited connection to calming during short-term stressful tasks. The 5-HTP findings concern selected anxiety and stress-related settings, so broader everyday relief remains uncertain. Tyrosine relates to maintaining function under intense demands rather than feeling calmer. These findings apply to the selected two-capsule serving; the supplied amounts are not multiplied into a daily regimen.
How this product is rated for Stress Relief
Ingredient fit74
GABA, 5-HTP and tyrosine are counted for different aspects of stress support, with uneven amount support.
Goal fit
The formula contains several relevant ingredients and one additional active outside this goal's credited ingredients.
Dose adequacy
GABA receives full amount recognition; 5-HTP and tyrosine receive partial recognition per two-capsule serving.
Pathways80
The main coverage is calming, with an additional mood and neurotransmitter route and limited sleep recovery.
Depth
GABA makes calming the strongest route in the saved findings.
Breadth
Calming and mood-related neurotransmitter routes reach substantial coverage; sleep recovery remains limited.
Evidence91
GABA has limited short-term task-stress findings; 5-HTP has conditional evidence, and tyrosine's functional role does not establish calmness.
Evidence strength
GABA is the strongest supported ingredient recognized here, with limited short-term applicability.
Studied preparation
The saved findings recognize the preparations of the three credited ingredients.
Formulation logic100
The credited ingredients can contribute without missing partners, and none of the checked conflicts was triggered.
Partner coverage
No required partner is missing from the credited ingredients.
Conflicts
None of the checked stimulant or ingredient-combination conflicts was triggered.
Effective doses
GABA, 5-HTP and tyrosine meet the inclusion threshold; taurine and vitamin B6 do not. Inositol is excluded from the saved scope.
L-Tyrosine Not classified
No linked studies yet.
Impact
Lower effect
Vitamin B6 · 30 mgGlutamine · 600 mgTaurine · 600 mg
Vitamin B6 Not classified
No linked studies yet.
Ingredients
| Ingredient | Amount per serving | Score |
|---|---|---|
Vitamin B-6 (Pyridoxal 5-Phosphate) | 30 mg | |
L-Tyrosine | 1200 mg | |
GABA | 750 mg | |
L-Glutamine | 600 mg | |
Inositol | 600 mg | |
Taurine | 600 mg | |
5-HTP | 150 mg |
GABA · 750 mg OverallScore73
Each serving provides 750 mg of generic GABA. The whole-product serving costs $2.43, which is high in the GABA price comparison.
How this ingredient is rated
Active Ingredient Quality & Bioavailability70
The available facts identify generic GABA but do not specify its production method.
GABA Source & Production Method
The available facts identify generic GABA but do not specify its production method.
Dose, Safety & Label Transparency93
The serving discloses 750 mg of GABA. The recorded Other Ingredients panel includes a checked flow-agent term.
GABA Dosage Adequacy & Transparency
The serving discloses 750 mg of GABA.
Label Purity & Excipient Quality
The recorded Other Ingredients panel includes a checked flow-agent term.
Value40
At $2.43 per whole-product serving, the cost is high in this GABA price comparison.
Price per Effective Dose
At $2.43 per whole-product serving, the cost is high in this GABA price comparison.
Tyrosine · 1200 mg OverallScore76
Each serving lists 1200 mg of L-tyrosine. The whole-product price is about $2.03 per gram of tyrosine.
How this ingredient is rated
Active Ingredient Quality & Bioavailability85
The ingredient is identified as L-tyrosine. The saved facts record a GMP manufacturing claim, but no tyrosine-specific purity details.
Tyrosine Chemical Form
The ingredient is identified as L-tyrosine.
Purity and Sourcing Signals
The saved facts record a GMP manufacturing claim, but no tyrosine-specific purity details.
Dose, Safety & Label Transparency100
The stated amount is 1200 mg of L-tyrosine per serving. 1200 mg per serving aligns with the evaluation's cognitive-support amount criterion.
Tyrosine Dosage Adequacy
1200 mg per serving aligns with the evaluation's cognitive-support amount criterion.
Label Transparency and Blends
The stated amount is 1200 mg of L-tyrosine per serving.
Value10
The whole-product price is about $2.03 per gram of tyrosine.
Price per Gram of Tyrosine
The whole-product price is about $2.03 per gram of tyrosine.
Taurine · 600 mg OverallScore57
A serving lists 600 mg of taurine. Based on the whole-product price, that works out to about $4.06 per gram of taurine.
How this ingredient is rated
Active Ingredient Quality & Bioavailability51
The ingredient is identified as taurine, without a more specific form or purity grade in the saved facts. A flow agent is recorded.
Chemical Form and Purity
The ingredient is identified as taurine; a more specific form or purity grade is not established in the saved facts.
Sourcing and Branded Ingredients
The saved facts do not establish the taurine source or manufacturing origin.
Formulation Cleanliness
A flow agent is recorded in the evaluated formula; the saved facts do not identify which one.
Dose, Safety & Label Transparency80
The label states 600 mg taurine per serving. A testing or GMP-production claim is recorded, without a specific certification seal.
Taurine Dosage Potency
The serving provides 600 mg of taurine.
Dose Disclosure
The label states 600 mg of taurine per serving.
Quality Assurance and Testing
A testing or GMP-production claim is recorded, but no specific third-party certification seal is identified.
Value20
Based on the whole-product serving price, the cost is about $4.06 per gram of taurine.
Price per Gram of Taurine
At about $4.06 per gram of taurine, the price is high in this comparison; the calculation includes the whole product.
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Sources
Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.
- Combined L-carnosine and L-tyrosine supplementation as an ergogenic strategy for physical and cognitive performance under fatigue in professional football players.
- Effect of tyrosine supplementation on clinical and healthy populations under stress or cognitive demands--A review.
- Influence of nutritional tyrosine on cognition and functional connectivity in healthy old humans.
- 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.
- Baseline-dependent effect of dopamine's precursor L-tyrosine on working memory gating but not updating.
- Vitamin B12, B6, or Folate and Cognitive Function in Community-Dwelling Older Adults: A Systematic Review and Meta-Analysis.
- Relationship between serum pyridoxal 5'-phosphate concentration and cognitive function in older Japanese.
- A randomized, controlled trial to evaluate the efficacy of pyridoxine and ascorbic acid on cognitive function and quality of life in post-menopausal women.
- Lower Plasma Vitamin B-6 is Associated with 2-Year Cognitive Decline in the Boston Puerto Rican Health Study.
- Are Dietary Supplements and Nutraceuticals Effective for Musculoskeletal Health and Cognitive Function? A Scoping Review.
- Taurine supplementation enhances anaerobic power in elite speed skaters: A double-blind, randomized, placebo-controlled, crossover study.
- The effect of acute taurine ingestion on 3-km running performance in trained middle-distance runners.
- Effects of different doses of taurine supplementation on repeated-sprint performance after exhaustive exercise in a high temperature and humidity environment.
- Oral taurine improves critical power and severe-intensity exercise tolerance.
- Acute taurine supplementation enhances thermoregulation and endurance cycling performance in the heat.
- Efficacy of glutamine supplementation in postoperative patients undergoing hepatic surgery: a systematic review and meta-analysis of randomized controlled trials.
- Glutamine supplementation in preterm infants receiving parenteral nutrition leads to an early improvement in liver function.
- Parenteral glutamine protects hepatic function during bone marrow transplantation.
- Protective effect of parenteral glutamine supplementation on hepatic function in very low birth weight infants.
- A multistrain probiotic increases the serum glutamine/glutamate ratio in patients with cirrhosis: a metabolomic analysis.