Overall, methylcobalamin is widely preferred due to its direct usability, higher bioavailability, and faster action
Tracing this activity to a small copper-binding peptide, Pickart launched over five decades of research into a molecule with an unusually broad biological profile: it stimulates blood vessel and nerve outgrowth, increases collagen, elastin, and glycosaminoglycan synthesis, and supports dermal fibroblast function
When stratified by administration route, the mean percentage changes were: Intramuscular (IM): 307% Oral: 285% Sublingual: 199% IM administration showed the highest average B12 increase, although oral and sublingual routes also yielded substantial improvements, supporting their use as effective and less invasive alternatives
Two peptides, one vial
Insert the needle in the center of the v-shape to administer the B12 injection
They include semaglutide (Wegovy), liraglutide (Saxenda), and tirzepatide (Zepbound)