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The copper connection The "Cu" isn't incidental: copper is a required cofactor for the enzymes that cross-link collagen and elastin, and GHK's role is to carry it where it's needed.[1] That delivery job is a big part of why such a tiny peptide has such broad effects
In many places, they are not allowed to give injections
Reviewed 2020
Its skin-active properties were confirmed in a landmark 1998 study (Abdulghani et al.) in which topical GHK-Cu outperformed both vitamin C and retinoic acid in stimulating measurable collagen production
Vitamin B12 thus plays an important role in the development of the foetus, which is why it is pivotal to obtain an adequate amount during pregnancy
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