does b12 injection sting Benefits of Injections for Optimal Health Vitamin B12 Injection Sites: All

PMCID: PMC5752708

Surgical Oncology 18, 37113717

Multiple animal studies show accelerated Achilles tendon repair, improved tendon-to-bone attachment, and faster return to functional mobility after injury

The peptides ability to produce metabolic effects with such rapid plasma clearance (3-minute half-life) while maintaining prolonged biological activity represents a significant knowledge gap requiring further investigation

People who have had intestinal surgery, such as weight loss surgery, or who have digestive disorders, such as celiac disease or Crohns disease, which may reduce the amount of vitamin B12 the body can absorb

Experiencing increase in energy but no weight loss yet You guys are great but this seems to sting for a while at injection site for a half hour or so and not sure if that is common