It works best as part of a comprehensive brightening routine that includes other proven ingredients like vitamin C or kojic acid
If methylation is sluggish (often for genetic reasons) or the body doesn't have enough nutrients (including vitamin B12 and folate) to turn the methylation cycle, the body can't make enough glutathione
Antioxid Redox Signal 9:202733, PMID: 17845131 Hinchman CA, Ballatori N (1994) Glutathione conjugation and conversion to mercapturic acids can occur as an intrahepatic process
It should be noted, however, that only the short/medium-term eects of GSH supplementation were evaluated during this trial
In addition, Nair et al., [56] reported that vitamin C, -tocopherol, - and -carotenes, lutein and lycopene are exhausted in peptic ulcer patients irrespective of H.pylori status.Such micronutrient antioxidants are known to protect the gastroduodenal mucosa by scavenging ROS
Evidence: GHK-Cu has 30+ years of published research (Pickart et al