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1986 Nov-Dec;7(6):1165-87
Carboxypeptidase digestion of hCG [PMID: 598338] Laboratory literature summary: Carboxypeptidase digestion of hCG
At a molecular weight of approximately 340 Da as the free tripeptide (see the GHK-Cu compound overview), it sits below the 500 Da threshold commonly associated with good dermal penetration a key reason GHK-Cu topical serum formulations achieve dermal absorption where many larger cosmetic peptides do not
After reconstitution, peptides require refrigeration
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