no synthesis glutathione Glutathione has been studied for its potential to improve skin health and reduce the appearance of hyperpigmentation. Glutathione - an overview |

MUL1 E3 ligase regulates the antitumor effects of metformin in chemoresistant ovarian cancer cells via AKT degradation

10.3389/fphar.2021.730525 Front Pharmacol

It's possible your symptoms are related to the B12 injections, although uncommon

Beyond skin aging, GHK-Cu's fibroblast-protective effects under radiation exposure have made it a compound of interest in radiobiology research, and separate literature has explored copper peptides in the context of skin regeneration alongside investigations into anti-cancer cellular signaling

Moreover, Chinese herbal medicines exhibit the ability to prevent bone destruction by inhibiting the differentiation of osteoclasts, which are responsible for bone resorption