How NAD Injections Work: NAD is injected intramuscularly (IM), allowing for rapid absorption into the bloodstream
Elyasi, E
Understanding the Evidence Level: While laboratory (in-vitro) studies show GHK-Cu signals collagen production, human cosmetic trials largely show improvements in surface hydration and texture
This is because people with thyroid issues have specific needs, and taking supplements marketed to enhance thyroid health may negatively affect thyroid function, causing their health and symptoms to worsen
However, it is a laboratory study, not a clinical trial on living patients
It has been shown to upregulate the expression of growth-factor receptors on tendon fibroblasts, promote the formation of new blood vessels (angiogenesis) partly through the VEGF and nitric-oxide pathways, and encourage fibroblast migration and proliferation