While GHK-Cu delivers copper in a chelated form that prevents oxidative damage, extended continuous use could theoretically affect copper homeostasis
For in vivo pharmacokinetic analysis, male Sprague-Dawley rats weighing 250 g were cannulated in the right jugular vein
"In 9 hours, 134 nanomoles of peptide and 705 nanomoles of copper permeated through microneedle-treated human skin, while almost no peptide or copper permeated through intact skin." That is the Li et al
Tussauds makes near-perfect replicas, right down to the eyeball capillaries made of red silk thread, the sheen of sweat, and the colour of flushed skin
The mitophagy pathway and its implications in human diseases
After a B12 injection, avoid strenuous activity for 24 hours, refrain from soaking in hot baths or jacuzzis for at least 24 hours, and do not rub the injection site