While our Collagen Peptides are a rich source of glycine, glutathione requires glycine as one of its three core components
PLoS One 8:e59827 Cheng R, Li C, Li C, Wei L, Li L, Zhang Y, Yao Y, Gu X, Cai W, Yang Z, Ma J, Yang X, Gao G (2013) The artemisinin derivative artesunate inhibits corneal neovascularization by inducing ROS-dependent apoptosis in vascular endothelial cells
Moreover, PEGylation of NPs can enhance their biocompatibility and reduce enzymatic degradation and non-immunogenicity (Karakoti et al., 2011)
The Pernicious Anaemia Society and the NIH B12 professional fact sheet are both reliable places to read further
Schedule an appointment if pain persists beyond six weeks, worsens at night, or follows trauma