ghk-cu peptide tolerance desensitization receptor downregulation Frontiers GHK-CU vs Other Copper Peptides:
Description
Finally, the substrate 3,3,5,5-tetramethylbenzydine (TMB) was added to the solution, which undergoes an enzymatic reaction catalyzed by HRP from which a blue color is produced that turns yellow after the addition of an acidic stop solution

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L-NAME had no effect

PMID: 31677028
