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This copper-binding tripeptide sits at the intersection of wound repair, skin rejuvenation, hair follicle biology, and even broader gene regulation

This is predominantly due to sulfites which are compounds that can cause headaches, flushing, and fatigue

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To be clear up front: Koi Peptides sells research-grade, sterile lyophilized GHK-Cu powder for in vitro laboratory study only

10.1007/s10875-008-9236-x 23 DawiJ.MisakyanY.AffaS.KadesS.NarasimhanA.HajjarF.et al (2024)

Page copy reflects published preclinical and biochemistry literature only and does not constitute dosage, administration, treatment, or therapeutic guidance