I think they have some benefit, but youre not going to see massive results and you definitely arent going to reverse 20 years of ageing with some light bulbs
What is the typical syringe size for vitamin B12 (cobalamin) injections?
Vitamin B-12 is for injection only
Red blood cell formation and oxygen transport

Key Takeaways Vitamin B12 is essential for energy production, nerve function, red blood cell formation, and cognitive health B12 injections offer nearly 100% absorption compared to 1-30% for oral supplements, delivering faster and more reliable results Injections prove particularly beneficial for individuals with malabsorption issues, severe deficiency, or those taking medications affecting B12 uptake Oral supplements work well for prevention and maintenance in people with healthy digestive function B12 injection costs in Richmond typically range from $20-40 per treatment, with monthly or biweekly frequency common Professional evaluation and blood testing help determine which supplementation approach best suits your individual needs Optimal Health & Wellness provides personalized B12 injection therapy serving Richmond, Henrico, and Chesterfield County Introduction: Why B12 Matters for Richmonds Active Lifestyles Vitamin B12 stands as one of the most critical yet commonly deficient nutrients affecting Americans today

My internist, Sabena Toor, straddles that divide