b12 injection intramuscular or subcutaneous 💉 IM — what's the difference? Both deliver medication, but where and how matters. • (IM): deep into muscle — faster absorption (e.g. many vaccines, B12) • Subcutaneous (SC) prescription supplement

Best Vitamin B12 Injection Sites | MedHealth 360

vision changes in people with Leber’s disease

prescription supplement

Size:200 mg

Who Tends to Notice the Biggest Difference The people who report the clearest B12 injection results usually fall into a few groups: Vegans and vegetarians with limited dietary sources Adults over 50, since absorption often declines with age Anyone with digestive absorption issues or a history of GI surgery People taking certain long-term medications If your levels are already in a healthy range, set your expectations accordingly