A primary reason is poor blood supply
ihre Halbwertszeit im Blut betrgt ohne Modifikation oft nur Minuten bis Stunden
Xue, M., Zhao, R., March, L
B12 injections deliver vitamin B12 directly into the bloodstream, avoiding the digestive system where absorption can fail
Other weight loss peptides like AOD-9604 cost $150-300 monthly through clinical programs, offering a more affordable alternative though with less dramatic results than GLP-1 agonists
however, they were all conducted in the '80s and '90s, and the FDA described the results as "inconclusive and at best preliminary." Epitalon: This is another peptide that's promoted as a solution for insomnia