Confidence: 72%
B09W355M95
View on Amazon →Decision summary
Not a strong option overall. The product is materially held back by weaker formulation coherence.
Best for
Only budget-focused buyers with flexible standards.
Consider another option if
You care a lot about label clarity and want fewer unknowns.
Score breakdown
Tap a module to see what it measures. A 0 can reflect missing disclosure, not just a negative result.
Dosage quality
2.6/10Dosing looks weaker than ideal
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).
Dose 2.6/10 · Bioavailability 0.4/10 · Coherence 0/10
Dose quality suggests a diluted formulation.
Ingredient form quality suggests suboptimal ingredient forms.
Some ingredient forms are not declared on the label.
This is a multi-ingredient product. The score reflects formulation quality, not efficacy for a specific health goal.
Vitamin-k2: dose within clinically studied range (evidence B). The main limitation is that vitamin-a: below clinically studied range.
Strengths
Weaknesses
Final verdict
Not a strong option overall. The product is materially held back by weaker formulation coherence.
A closer look at the main ingredients, how they influence the score, and the supporting evidence when available. Tap any ingredient to expand.
⚠ Strong evidence exists, but dose is below effective threshold
This is a limiting factor: Dose is likely below clinically useful levels. The label does not specify the form, so absorption quality cannot be verified.
Scientific evidence
Singh & Das Cochrane review zinc for common cold
Cochrane Database of Systematic Reviews • 2011
PMID: 22553186.0
Prasad et al. RCT zinc supplementation and testosterone in elderly men
Nutrition • 1996
PMID: 8875519.0
⚠ Dose is below commonly used clinical ranges
A clear drag on the formula: Dose is likely below clinically useful levels. The label does not specify the form, so absorption quality cannot be verified.
Clinical dosing guidance
Based on established dosing ranges used in clinical practice.
✔ Clinically effective dose with strong supporting evidence
A clear drag on the formula: Dose is strong and within effective ranges. The label does not specify the form, so absorption quality cannot be verified.
Scientific evidence
Cockayne et al. meta-analysis vitamin K2 and bone mineral density
Archives of Internal Medicine • 2006
PMID: 16801507.0
Geleijnse et al. Rotterdam study on vitamin K intake and cardiovascular mortality
Journal of Nutrition • 2004
PMID: 15514282.0
ℹ Evidence is strong, but dose is below the optimal range
A clear drag on the formula: Dose is below the ranges usually used for stronger effects.
Scientific evidence
Wald et al. meta-analysis of folic acid and cardiovascular risk
BMJ • 2002
PMID: 15364185.0
Daly et al. RCT on folate supplementation and homocysteine reduction
New England Journal of Medicine • 1996
PMID: 9521168.0
ℹ Evidence is strong, but dose is below the optimal range
This is a limiting factor: Dose is below the ranges usually used for stronger effects. The label does not specify the form, so absorption quality cannot be verified.
Scientific evidence
Yurko-Mauro et al. RCT DHA and memory in age-related decline
Alzheimer's & Dementia • 2010
PMID: 20439549.0
⚠ Strong evidence exists, but dose may be too low to be effective
A clear drag on the formula: Dose is likely below clinically useful levels. The declared form supports strong absorption.
Scientific evidence
Martineau et al. meta-analysis vitamin D supplementation and respiratory infections
BMJ • 2017
PMID: 26864360.0
Bischoff-Ferrari et al. meta-analysis vitamin D fracture prevention
BMJ • 2009
PMID: 20198382.0
Important label or formulation details that may affect how this product should be interpreted.
Vitamin A dose looks below clinically effective levels
Declared amount falls below ranges used in human trials.
Zinc dose looks below clinically effective levels
Declared amount falls below ranges used in human trials.
Vitamin A form is not clearly declared
Exact ingredient form is not disclosed on the label.
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 Zinc supplements ranked with the same methodology, or keep exploring the database.
