Intramuscular self-injection is more difficult and typically requires training or assistance
When a compound has no completed human trial, there is by definition no safety data in any subgroup no pregnancy data, no hepatic-impairment data, no interaction data with common metabolic or endocrine medications
Keep unused aliquots labeled with date, solvent, and concentration for later repeats
Additionally, it serves as a coenzyme in several metabolic pathways responsible for energy production, aiding the body to metabolize fats and proteins
Certain individuals may need to avoid B12 injections or use them only under medical supervision
But it really works on the upper part of the face and will rejuvenate the skin and makes people just look that little bit fresher