Confidence: 95%
Decision summary
A solid product, but not a clean win. The main trade-off is weaker dosing.
Best for
Buyers who want a solid pick and can tolerate a couple of trade-offs.
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
6.9/10Acceptable 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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The supporting evidence profile is relatively strong. The main limitation is that vitamin-c: below clinically studied range.
Strengths
Weaknesses
Final verdict
A solid product, but not a clean win. The main trade-off is weaker dosing.
A closer look at the main ingredients, how they influence the score, and the supporting evidence when available. Tap any ingredient to expand.
ℹ Evidence is strong, but dose is below the optimal range
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
Lan et al. meta-analysis berberine and lipid profile
Journal of Ethnopharmacology • 2015
PMID: 26448206.0
Dong et al. meta-analysis berberine and glycemic control in type 2 diabetes
Metabolism • 2012
PMID: 22162995.0
✔ 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
⚠ Strong evidence exists, but dose is below 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
Important label or formulation details that may affect how this product should be interpreted.
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.
See the best Berberine supplements ranked with the same methodology, or keep exploring the database.
