Confidence: 70%
B016P46EKY
View on Amazon →Decision summary
A middling option. It may be usable, but weaker formulation coherence makes better alternatives worth comparing.
Best for
Buyers comparing price and availability and okay with a middle-of-the-pack option.
Consider another option if
You want one of the best-absorbed options in this category.
Score breakdown
Tap a module to see what it measures. A 0 can reflect missing disclosure, not just a negative result.
Dosage quality
5.8/10Acceptable dosing, but not standout
Checks whether labeled ingredient amounts fall within clinically studied ranges (not just regulatory minimums). Low/0 can reflect under-dosing or missing amounts (e.g., proprietary blends).
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Dose 5.8/10 · Bioavailability 5.5/10 · Coherence 0/10
This is a multi-ingredient product. The score reflects formulation quality, not efficacy for a specific health goal.
Tryptophan: high-bioavailability form declared (L Tryptophan). The main limitation is that formula coherence is weak: diluted, decorative or overly complex.
Strengths
Weaknesses
Final verdict
A middling option. It may be usable, but weaker formulation coherence makes better alternatives worth comparing.
A closer look at the main ingredients, how they influence the score, and the supporting evidence when available. Tap any ingredient to expand.
ℹ Dose is within established clinical ranges, but lacks direct studies
Solid but not a standout: Dose is directionally useful, but not a standout strength. The declared form supports strong absorption.
Clinical dosing guidance
Based on established dosing ranges used in clinical practice.
ℹ Dose is below the optimal range with moderate supporting evidence
A clear drag on the formula: Dose is below the ranges usually used for stronger effects. The declared form supports strong absorption.
Scientific evidence
Jongkees et al. meta-analysis tyrosine and cognitive performance under stress
Neuroscience & Biobehavioral Reviews • 2015
PMID: 25797858.0
Banderet & Lieberman RCT tyrosine and cognitive performance under stress
Brain Research Bulletin • 1989
PMID: 2736402.0
⚠ Moderate evidence exists, but dose is below effective threshold
One of the weaker points: Dose is likely below clinically useful levels. The declared form supports strong absorption.
Scientific evidence
Bannai et al. RCT glycine supplementation and sleep quality
Sleep and Biological Rhythms • 2012
PMID: 22529837.0
Evidence inferred from established knowledge, not directly linked studies
Solid but not a standout: Clinical dosing guidance is limited for this ingredient. The declared form supports strong absorption.
No supporting studies or dosing references are currently available for this ingredient.
Evidence inferred from established knowledge, not directly linked studies
Adequate, but not a key strength: Clinical dosing guidance is limited for this ingredient. The declared form supports strong absorption.
No supporting studies or dosing references are currently available for this ingredient.
Evidence inferred from established knowledge, not directly linked studies
Adequate, but not a key strength: Clinical dosing guidance is limited for this ingredient. The declared form supports strong absorption.
No supporting studies or dosing references are currently available for this ingredient.
Important label or formulation details that may affect how this product should be interpreted.
Formula design looks less coherent than stronger alternatives
The formulation appears less focused than better-built options.
Glycine dose looks below clinically effective levels
Declared amount falls below ranges used in human trials.
Arginine dose looks below clinically effective levels
Declared amount falls below ranges used in human trials.
Read our methodology overview to understand how SuppScoreLab combines multiple scientific dimensions into one practical score.
View methodology →This evaluation is based on the product label and declared Supplement Facts available at review time. It does not verify laboratory-tested composition, purity, or batch-level quality. This content is educational and not medical advice. Consult a qualified healthcare professional for personal health decisions. Affiliate disclosure: SuppScoreLab may earn a commission from qualifying Amazon links.
See the best Protein Powder supplements ranked with the same methodology, or keep exploring the database.
