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Third-party HPLC-verified to greater than 99% purity, with a batch-specific Certificate of Analysis available on request
Department of Health and Human Services, ods.od.nih.gov/factsheets/VitaminB12-HealthProfessional/
10.1016/j.ejphar.2005.12.087
Using unregulated "research chemical" products with unknown purity, incorrect concentrations, and potential contamination (bacterial endotoxins, heavy metals, residual solvents) introduces risks that have nothing to do with the peptide
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