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If cancer symptoms develop while using GHK-Cu, discontinue use and consult your doctor for evaluation and potential testing

Complete blood count

Two ELISA plates with the same reference and lot number were used per assay to obtain intra-assay and inter-assay coefficients of variations (CV), an intrinsic indicator of the reproducibility of the kit (Supplementary Figure S5)

Comprehensive baseline cancer screening appropriate for age and risk (PSA, colonoscopy, mammography, skin exam)

1 AHK-Cu and GHK-Cu are close chemical cousins (they differ in the first residue, alanine versus glycine), and they share the copper-binding motif that gives the family its character