GHK-Cu research serums from NexXGEN Peptides®, formulated for in-vitro laboratory research.
Every lot is tested by an independent third-party laboratory, with its certificate of analysis (COA) on the product page. For background on the peptide itself, see our guide to GHK-Cu peptide chemistry and stability.
All products are labeled and sold for research use only. Free US shipping on orders of $350 or more (product total after discounts).