Confidence: 80%
Decision summary
A middling option. It may be usable, but weaker formulation coherence makes better alternatives worth comparing.
Best for
Buyers who want a solid pick and can tolerate a couple of trade-offs.
Consider another option if
You want fewer compromises on formulation quality.
Score breakdown
Tap a module to see what it measures. A 0 can reflect missing disclosure, not just a negative result.
Dosage quality
7.4/10Generally solid dosing
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 7.4/10 · Bioavailability 4.5/10 · Coherence 0/10
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-c: dose within clinically studied range (evidence A). 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
Adequate, but not a key strength: Dose is directionally useful, but not a standout strength. The declared form is acceptable, but not among the best-absorbed options.
Clinical dosing guidance
Based on established dosing ranges used in clinical practice.
✔ Clinically effective dose with strong supporting evidence
Dose is well positioned: Dose is strong and within effective ranges. 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
ℹ Dose is within established clinical ranges, but lacks direct studies
A clear strength: Dose is strong and within effective ranges. The declared form supports strong absorption.
Clinical dosing guidance
Based on established dosing ranges used in clinical practice.
ℹ Evidence is strong, but dose is below the optimal range
A clear strength: Dose is strong and within effective ranges. 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
✔ Clinically effective dose with strong supporting evidence
Adequate, but not a key strength: Dose is directionally useful, but not a standout strength. 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
✔ Clinically effective dose with moderate supporting evidence
Solid but not a standout: Dose is directionally useful, but not a standout strength. 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.
Formula design looks less coherent than stronger alternatives
The formulation appears less focused than better-built options.
Vitamin A dose looks below clinically effective levels
Declared amount falls below ranges used in human trials.
Vitamin E 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 Vitamin D3 supplements ranked with the same methodology, or keep exploring the database.
