That said, theres no scientific evidence that taking a vitamin B12 supplement, or even eating more foods with vitamin B12, can stop hair loss from happening
This makes them more effective for individuals with absorption issues
Problems with B12 deficiency A lack of B12 in your body affects several nervous system and red blood cell functions, which can lead to things like: Anemia: causes fewer red blood cells to move from your bone marrow Birth problems: increases risk of pregnancy loss and neural tube defects Osteoporosis: leads to poor bone health and fracture risk Macular degeneration: progression of age-related macular degeneration Memory loss: the onset of early-stage dementia is greater The advantages of B12 injections The decision to get a B12 shot instead of a supplement depends on factors such as your level of vitamin deficiency, the presence of symptoms, and how your need changes over time

NIH Office of Dietary Supplements Vitamin B12 Health Professional Fact Sheet: link MedlinePlus Cyanocobalamin injection: link Mayo Clinic Cyanocobalamin (intramuscular route): link IAPAM MIC Injections: link Fastic Do Vitamin B12, Lipo, and MIC Injections Actually Work for Weight Loss?: link FDA Using Fat-Dissolving Injections That Are Not FDA Approved Can Be Harmful: link Jacobson Cosmetic Surgery SlimShots (MIC/B12): link Eden B12 MIC Shots for Weight Loss: Cost & Reviews: link Journal of Clinical Endocrinology & Metabolism Inositol for PCOS: Systematic Review and Meta-analysis (2024): link
5-amino-1mq appears to have muscle-sparing properties