Chem Biol Interact 31, 287300
I dont think thats a peptide problem
Unlike oral B12, which depends on intrinsic factor and healthy gut absorption, the injection delivers B12 directly into the bloodstream
Another factor to consider is individual biochemistry
Biological Activity in vitro and in vivo , effectively reducing oxidative stress, apoptosis , and ferroptosis in hair cells
In animal experiments, TUDCA protected eggs (oocytes) and early embryos from stress and cell death, improving their survival and development.28 Cell culture studies show TUDCA can reduce ER stress during embryo development, which may support healthier implantation and growth.29 No human studies have tested whether TUDCA improves fertility or pregnancy outcomes