Our bodies dont create vitamin B12, so we receive it through diet and supplementation
and participating in hobbies, household activities, and events
L-Arginine is the only substrate in the biosynthesis of nitric oxide (NO), which plays critical roles in important physiological processes in the human body including neurotransmission (nerve communication between cells), vasorelaxation (dilation of blood vessels), protective cytotoxicity (removal or bad cells) and immunity
However, not enough is known about this theoretical issue to elucidate a risk-benefit tradeoff and how timing of treatment works into such a tradeoff
If you inject only once a day, the peptide disappears from your system for most of that 24-hour window
That said, TB-500 as sold for research is a fragment, and data specific to the fragment rather than the full protein remain limited and largely preclinical