Confidence: 95%
B07RGXZSNJ
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Decision summary
Not a strong option overall. The product is materially held back by weaker formulation coherence.
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
2.9/10Dosing 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 2.9/10 · Bioavailability 4.1/10 · Coherence 0/10
Dose quality suggests a diluted formulation.
Ingredient form quality suggests suboptimal ingredient forms.
This is a multi-ingredient product. The score reflects formulation quality, not efficacy for a specific health goal.
Vitamin-d: high-bioavailability form declared (Cholecalciferol (D3)). 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.
⚠ Dose is below commonly used clinical ranges
Dose is below the minimum effective threshold. A clear drag on the formula: Dose is likely below clinically useful levels. The declared form is acceptable, but not among the best-absorbed options.
Clinical dosing guidance
Based on established dosing ranges used in clinical practice.
ℹ At the minimum effective range, but below the optimal dose with moderate supporting evidence
Dose meets the minimum effective range, but is below the optimal dose used for stronger effects. One of the weaker points: Dose is below the ranges usually used for stronger effects.
Scientific evidence
Patel et al. systematic review biotin and hair/nail health
Skin Appendage Disorders • 2017
PMID: 28786550.0
⚠ 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
⚠ Strong evidence exists, but dose is below effective threshold
Dose is below the minimum effective threshold. This is a limiting factor: Dose is likely below clinically useful levels. The declared form is acceptable, but not among the best-absorbed options.
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
⚠ Strong evidence exists, but dose is below effective threshold
Dose is below the minimum effective threshold. This is a limiting factor: Dose is likely below clinically useful levels. The declared form is acceptable, but not among the best-absorbed options.
Scientific evidence
Hemila & Chalker Cochrane review vitamin C and common cold duration
Cochrane Database of Systematic Reviews • 2013
PMID: 23440782.0
Padayatty et al. RCT on vitamin C antioxidant capacity in healthy adults
Journal of the American College of Nutrition • 2001
PMID: 11684527.0
ℹ At the minimum effective range, but below the optimal dose with moderate supporting evidence
Dose meets the minimum effective range, but is below the optimal dose used for stronger effects. One of the weaker points: Dose is likely below clinically useful levels. The declared form is acceptable, but not among the best-absorbed options.
Scientific evidence
Bryan et al. RCT on B vitamins and cognitive function in older adults
American Journal of Clinical Nutrition • 2002
PMID: 16920179.0
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.
Formula design looks less coherent than stronger alternatives
The formulation appears less focused than better-built options.
Vitamin C 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.
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