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Description
GHK-Biotin is a conjugate of GHK (Glycyl-L-Histidyl-L-Lysine), a tripeptide, and Biotin, a water-soluble vitamin (Vitamin B7) essential for cellular energy production and keratin formation

Zhang H, You L, Zhao M

Please do not just purchase off the Internet or local health food store

Note: The review article states much LOWER quantities may be biologically active

Wozniak et al., Size and shape-dependent cytotoxicity profile of gold nanoparticles for biomedical applications

This interaction is widely documented but frequently overlooked in clinical practice