Furthermore, any intact glutathione that does manage to cross the intestinal wall is immediately routed to the liver via the portal vein, where it is subjected to heavy "first-pass metabolism." Because of this rigorous digestive and hepatic breakdown, early pharmacokinetic studies demonstrated that standard oral glutathione often fails to significantly boost serum or intracellular levels, rendering many traditional, over-the-counter supplements highly ineffective for chronic illness management
Vitamin B12 helps the body form red blood cells, produce cellular energy and synthesize DNA
C.GrolezG.TimmermanK.LalouxC.et al (2018)
See how AHK-Cu and GHK-Cu peptides work together, and why GHK-Cu rapidly degrades when not stored properly, in the full breakdown here
Setting realistic expectations from the start keeps you consistent, and consistency is what makes glutathione work
Overdose Concerns Vitamin B12 is water-soluble, meaning the body can excrete excess amounts