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Find your best fit. Label against label.

Compare price and composition of products with the same ingredient, then open a product for its sources.

No common price basis for every label2 with a source discrepancy
Berberine: label comparison
Label detailFairvitalBerberin 500 mg mit ZinkSunday NaturalBerberin 500 mgThorneBerberine Dual Action FormulaVit4everBerberin HCL 500 mg
Declared constituent500 mg berberine HClper capsule500 mg berberine HClper capsuleNot verified500 mg berberine HClper capsule
Extract mass515 mg515 mgNot verified516 mg
Standardization97% berberine HCl (manufacturer declaration)97% berberine HCl (manufacturer declaration)Per 2 capsules: 450 mg berberine HCl + 550 mg berberine phytosome complex.97% berberine HCl (label)
Count90 capsules90 capsules60 capsules120 capsules
Pack price€23.95Price observed 25 Sept 2026€19.90Price observed 25 Sept 2026€44.00Price observed 28 Sept 2026€24.99Price observed 25 Sept 2026
Comparison price€0.27per 500 mg berberine HCl€0.22per 500 mg berberine HClNo common basis€0.21per 500 mg berberine HCl
DocumentsNo report verifiedDocument linkedNo report verifiedHistorical report read
Source discrepancyNone recordedNone recorded
  • Total active berberine amount is not established; exclude from normalized active-price rankings.
  • Description mentions 15 mg black-pepper extract, ingredients and nutrient table do not; daily usage text also conflicts. Do not declare piperine absent or present as a verified fact.
AvailabilityOrder control present on source page; stock not independently verified.Order control present on source page; stock not independently verified.Source lists a starting price; seller stock and shipping not verified.Order control present on source page; stock not independently verified.

Amounts describe labels, not recommended doses. Different ingredients and formulations are not interchangeable. Differences in formulation matter. Price alone is not a quality score.