The term gets used because people feel worse after stopping, and 'withdrawal' sounds like a mechanism
In-vivo (made on real people) tests showed that using 10% Argireline solution around the eyes for 15 days decreased wrinkles depth by 17%, while a 5% Argireline formula applied for 28 days did almost the same with a decrease in wrinkle depth by 16.26%
Glutamine increases the activity of glutamine synthase (GLS) and glutamate dehydrogenase (GDH) by regulating the mTOR/S6 and MAPK pathways, thereby promoting tumor cell proliferation [282]
Induction of PR-1 accumulation accompanied by runaway cell death in the lsd1 mutant of Arabidopsis is dependent on glutathione levels but independent of the redox state of glutathione
Eardley I, Donatucci C, Corbin J, El-Meliegy A, Hatzimouratidis K, McVary K, et al