ROS-mediated NLRP3 inflammasome activation in brain, heart, kidney, and testis ischemia/reperfusion injury
Glutamate dehydrogenases in neisseria meningitidis

Consumer Results Overall Skin Condition: 93% noticed skin looked renewed* 84% saw that skin looked more toned* Advanced Claims: 89% noticed an improvement in lines and texture* 86% felt firmer, tighter skin* 86% saw an improvement in expression lines* 84% saw that wrinkles were smoothed* 83% noticed creases appeared shallower and forehead lines appeared smoother* 82% saw tighter-looking skin* 80% saw lines smoothed around the mouth and lips* 79% noticed engraved imperfections appeared shallower* 77% noticed that skin looked lifted* 74% felt that skin looked dramatically younger* 73% saw that deep-set wrinkles, including marionette lines and nasolabial folds were smoothed* *In a consumer study of 102 women after 28 days Acyl-Glutathione: The Master Antioxidant Comprised of 3 amino acids, glutathione is the body's main antioxidant and as part of a comprehensive skincare regimen can help to reduce the look of wrinkles and creases by replenishing fragile skin

Immunology 151(4):363374 Jensen AB, Srensen TI, Pedersen O, Jess T, Brunak S, Allin KH (2018) Increase in clinically recorded type 2 diabetes after colectomy
How often should you use it
This is the study that matters most for the "before and after" question, because it used the exact demographic most GHK-Cu consumers belong to: women over 50 with real photodamage, not 25-year-olds with minor texture concerns