Looking to see if the cyanocobalamin form of vitamin B-12 is safe
Importantly, key methodological gaps limit interpretation
It is essential to source vitamin B12 with semaglutide only from licensed and reputable compounding pharmacies that follow strict quality and sterility standards
What the Evidence Shows (and What It Doesnt) A recent real-world study (n = 94) on semaglutide + cyanocobalamin (compounded) showed average weight loss of ~4.11 kg (4.6%) in 3 months , along with favorable reductions in fat mass and improvements in body composition PubMed However, large controlled trials of this exact combination are lacking
Semaglutide and tirzepatide have their marketing authorizations, but neither is reimbursed in France for obesity as of May 2026, despite favorable opinions from the French National Authority for Health (HAS)
However, many peptides on the market have not undergone the strict regulatory processes like those used in medications