Because GHK-Cu is still being studied, its long-term effects are not fully known yet, so patch testing is always recommended before regular use
The vulnerability of the CNS is associated with the higher consumption of oxygen than other tissues
In contrast to inhibiting H 2 S biosynthesis, some studies have addressed the advantage of poisoning cancer cells with high levels of H 2 S, by using donors that release H 2 S in the tumour and somehow block the most important signalling pathways sustaining cancer survival, such as PI3K and MAPK
Moreover, these therapies primarily target advanced stages of the disease and do not adequately address underlying oxidative stress and inflammation
Glutathione helps with skin lightening because it inhibits the enzyme tyrosinase, which is essential to the production of melanin, the pigment responsible for skin colour
King Saud University-Science 34 (3), 101886