can you do b12 injections at home - Safety Guide for Self-Administration Vitamin B12 - Cyanocobalamin Homekit
Description
No Phase 1, Phase 2, or observational human study exists at the time of writing

The peptide protocols: A handbook for practitioners

(The National Institutes of Health) Aging can make it more difficult for the body to break down and absorb B12

Improved recovery faster replenishment of cellular energy after workouts
Peptides are chains of amino acids, while 5-amino-1mq is a synthetic derivative of methylquinolinium
(Neelakantan et al., Biochemical Pharmacology, 2018) That "without eating less" line is the part worth sitting with