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The peptide's biological activity depends entirely on maintaining the chelated copper ion in its Cu oxidation state, bound to the histidine and lysine residues through coordinate covalent bonds

Understanding these differences prevents both premature disposal of good product and use of degraded material

~ AlphaMD Most men starting testosterone replacement therapy are never warned about what happens below the belt - and not in the way you might think

The pathologic effects of large amounts of glucagon