GHKCU

GHKCU 50 mg is supplied by Prime Time Bio Labs as a lyophilized (freeze-dried) powder in a sealed, light-protected vial, with a printed lot number for batch traceability. Each unit is shipped with handling and reconstitution guidance intended for laboratory use. The product is sold in a single quantity — 50 mg per vial — with no additional size variants currently listed. It is in stock and ships within 24 hours of order confirmation. A Certificate of Analysis matching the shipped lot is available for download from your account after purchase, or in advance through Prime Time Bio Labs' Certificates of Analysis page.

GHK-Cu refers to a copper-associated form of the tripeptide glycyl-L-histidyl-L-lysine, commonly written Gly-His-Lys or GHK. The free GHK peptide has been identified in human plasma and is known in the literature to bind copper(II), forming the GHK-Cu complex studied in laboratory settings. Published research has examined GHK-Cu in cellular and tissue-based experimental models, including work on fibroblast behavior, extracellular-matrix components, and copper-peptide chemistry. These findings come from in-vitro, ex-vivo, and preclinical research contexts. They describe laboratory observations, not outcomes in humans, and they are not a basis for any therapeutic, cosmetic, or other human or animal use of this product. The exact molecular formula and molecular weight of a "GHK-Cu" compound vary across chemical databases depending on the specific stoichiometric or complex form referenced. Prime Time Bio Labs has not published a formula, molecular weight, or CAS number for this specific product on the current page, so none is stated here.

Every batch of GHKCU 50 mg is tested by a third-party laboratory using HPLC and mass spectrometry to evaluate purity and confirm identity. A Certificate of Analysis is issued for the specific lot shipped, showing the batch number, purity result, and analysis date. HPLC provides a chromatographic purity profile for the tested sample. Mass spectrometry provides mass-based evidence consistent with the expected analyte. Together, these results support the reported identity and purity of a given batch. They do not, on their own, establish sterility, endotoxin status, or suitability for human or animal use. The current published Certificate of Analysis (batch PTB-GHKCU-50MG-0925, analyzed 8/27/2026) reports a purity of 99%. Purity results are lot-specific — always confirm the batch number on your COA matches the lot number printed on your vial.

GHKCU 50 mg is sold strictly for laboratory and in-vitro research use by qualified professionals. It is not a drug, dietary supplement, cosmetic, or food product, and it has not been evaluated by the FDA or any equivalent regulatory body. It is not intended for human or animal consumption, administration, injection, or use of any kind, and it is not intended to diagnose, treat, cure, or prevent any disease or condition. By purchasing this product, you represent that you are a qualified researcher or institution and will handle it in accordance with applicable laws and laboratory safety protocols. Full terms are available in Prime Time Bio Labs' Medical Disclaimer.