Vitamin B12 (cobalamin) and folate (vitamin B9) are vitamins that serve important functions in the human body. Folate is needed for development and growth of cells (including red blood cells) and synthesis What Happens If You Inject B12 Wrong: 6 Red Flags Why Your Vitamin B12 Injection Remains Prescription Only Burning, tingling or numbness? Your body could be trying to tell you something. Symptoms like these may be signs of a Vitamin B deficiency. Neurobion contains Vitamin B1, B6, and B12 to