Use new sterile insulin syringes for each administration
meaning that animal studies have shown some adverse effect or there are no well-controlled studies in humans, but potential benefits may warrant use despite potential risks
B12 Injections can help improve memory, focus, energy, emotional stability, female fertility, low testosterone for men, digestive issues, hypothyroidism, red blood cell formation, metabolism, and its also helpful for nerve and brain regeneration
They reason that hydroxocobalamin is not a psychoactive substance or a synthetic chemical drug
On the flip side, if you only deal with occasional migraines, quarterly sessions might be plenty to keep you feeling your best