b12 vitamins vs b12 injections Vitamin Injections: What You Need To Know Vitamin B12 Injection at a

Linus Pauling Institute Oregon State University Reviewed in August 2025 by: Crystal Karakochuk, Ph.D

Vitamin B12also known as cobalaminis an essential nutrient that supports red blood cell production, nerve function, and DNA synthesis

The FDA had previously stated its interpretation of the statutory terms protein and chemically synthesized polypeptide in the amended statutory definition of biological product . The FDA interprets the term protein to mean any alpha amino acid polymer with a specific defined sequence that is greater than 40 amino acids in size

That said, the favorable safety profile in trials suggests AOD 9604 does not pose age-specific risks