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Understanding Vitamin B12 Vitamin B12 is a water-soluble vitamin that occurs naturally in animal products like meat, fish, dairy, and eggs
Doses up to 60mg/kg per day produced no observable toxicity
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Retatrutide, tirzepatide, and other approved or near-approval peptides have their own regulatory pathways
Bulk Catalog Specifications Lyophilized powder, 98% purity by HPLC-MS (copper chelation confirmed) Molecular weight: 744.3 g/mol (as copper complex) Available in research quantities (50 mg to 1000 mg) and bulk programs COA with HPLC and elemental analysis (copper content) per lot Also available as GHK basic (copper-free tripeptide) see catalog variant Cold-chain shipping and storage documentation Private-label and white-label bulk inquiry available Scientific Identifiers Research Mechanism Summary GHK-Cu is the copper(II) complex of the tripeptide Gly-His-Lys, an endogenous human plasma peptide that declines with age
