B12 × s1research.net — lab test, June 2026
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Test results
This is a purity and identity analysis. Sterility, endotoxins, and heavy metals were not screened — a high purity figure says nothing about those.
About this test
Label 1 mg · Lab measured 1.4 mg
140% of label, basis not stated — shown as printed. Reconstituted with 2 mL, a 50-unit draw holds 350 mcg using the measured mass, against 250 mcg on the label — 40% more.
One vial from this lot was weighed by the laboratory, not yours. This page reports what the certificate says; it does not recommend a dose.
Independent HPLC purity analysis of B12 from s1research.net, performed by BTLabs on June 1, 2026. Reported purity: 99.2%. Net content: 1.4 mg against 1 mg labeled (140% of label). Tested content exceeds the labeled amount by 40%. Batch B12052226S1. Sample source: shop-provided. Certificate of analysis attached.
Certificate of analysis
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