In one of his dear doctor letters, he writes that there is no proof that intramuscular B12 injections are better than oral tablets, so stop treating people with B12 injections
Dermal fillers such as Restylane, Juvederm, and Radiesse, which are the tools of choice to enhance facial volume and fill in deep lines, can also be injected under the skin to stretch and fill out certain types of superficial and deep soft acne scars
When these compounds are put together into a solution that is injected into the bloodstream, it enters the body without any possibility of facing dilution or being inefficiently absorbed into the gut
Vitamin B12 shots are often prescribed for people with: Pernicious anemia (autoimmune destruction of intrinsic factor needed for B12 absorption) Gastrointestinal surgeries (e.g., gastric bypass, ileal resection) Crohns disease or celiac disease Chronic alcoholism Long-term use of acid-reducing medications Vegan diets without supplementation Infants or children with congenital absorption disorders (i.e., vitamin B12 for kids in clinical care) Injections ensure direct delivery into the bloodstream, bypassing the digestive system entirely