patch testing is recommended for sensitive skin
It can become chronically lowered by many factors, including stress, poor sleep, poor diet, chronic infections, alcohol consumption, etc
As reported above, GSTs display sulfonamidase activity
GHK-Cu has been the subject of over 100 published studies spanning five decades of research, and the vast majority of that literature examines GHK-Cu as a single compound
10.1002/stem.2696 51 ZengY.ZhangZ.WangW.YouL.DongX.YinX.et al (2020)
Sometimes, added Vitamin C can cause kidney stones or even Hemodialysis in G6PD-deficient (a condition where red blood cells break down in response to certain medications) Besides the potential side effects, you must remember that glutathione injections are also expensive and painful