GHK-Cu 100mg from Peak Peptides tested at 99.6% purity via UV/Vis spectrophotometry on April 9, 2026 by Analytical Formulations, Inc. The quantitative assay using Beer-Lambert methodology confirmed 127.10mg per vial against the 100mg label claim.
Heavy metals screening shows <150ppb combined metals, with total aerobic and yeast/mold microbial counts at 0 CFU/ml, indicating high manufacturing standards and sterile conditions.
The sample was received sealed and in good condition, with qualitative identification confirming the compound matches its characteristic reference standard.

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