People buy cheap peptides that contain little or no actual AOD 9604
In severe cases, a deficiency can even lead to a swollen and inflamed tongue and mouth, known as glossitis
in this form it is essential for conversion of methylmalonate to succinate and synthesis of methionine from homocysteine (a reaction which also requires folate)

It includes 1-5 intramuscular or subcutaneous injections of 1000 mcg crystalline cyanocobalamin daily, followed by oral doses of 1000-2000 mcg/day Parenteral administration should be reserved for those with significant neurological symptoms NICE guideline: Vitamin B 12 deficiency in over 16s: diagnosis and management: Malabsorption as the confirmed or suspected cause of vitamin B 12 deficiency: Offer replacement to people if: lifelong intramuscular vitamin B12 Autoimmune gastritis is the cause They have had a total gastrectomy They have had a complete terminal ileal resection If the person has a vitamin B 12 deficiency because of malabsorption that is not caused by autoimmune gastritis, or a total gastrectomy or complete terminal ileal resection (for example, malabsorption caused by coeliac disease, partial gastrectomy or some forms of bariatric surgery): Offer vitamin B 12 replacement and Consider intramuscular instead of

Walker 2020 Key safety distinctions from full-length hGH: No IGF-1 elevation (confirmed across trials)
Description Home Kit Includes: 30 Day supply of B12 (methylcobalamin) Shots (10 doses) Syringes Alcohol Pads Physician Consultation [online] Procedure: Intramuscular (IM) Injection, self-administered in frontal thigh area