Sanitise both rubber stoppers with an alcohol swab

You should contact your GP if: You have been found to have elevated B12 levels on blood tests, particularly if levels exceed 1000 ng/L (approximately 740 pmol/L, though laboratory reference ranges vary) and you are not taking high-dose supplements You develop new symptoms after starting B12 supplementation, including persistent skin rashes, significant gastrointestinal disturbance, or unexplained symptoms You have underlying liver disease, kidney problems, or blood disorders and are considering B12 supplementation You are taking B12 supplements without medical supervision and have not had your levels checked, particularly if taking doses exceeding 2000 micrograms daily You experience symptoms that might indicate underlying disease, such as unexplained weight loss, persistent fatigue, jaundice, or abdominal swelling Call 999 or go to A&E if you develop severe allergic reactions following B12 injections, including difficulty breathing, facial swelling, or widespread rash, as these may indicate anaphylaxis, though this is extremely rare

Vitamin B-12 is available in many forms including pills and skin patches, so why choose injections over other options
Pernicious Anemia: This is an autoimmune disorder where the body mistakenly attacks a protein in the stomach called "intrinsic factor." Without this protein, you simply cannot absorb B12 from food, making injections a lifelong necessity
Vitamin B12 is crucial for womens health, but its deficiency can have serious, even dangerous, effects if left unchecked
Here is what the peptide actually does, how we use it, and who should not start it