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Vitamin B12 shot side effects Most people tolerate vitamin B12 injections well, but possible side effects include: Mild: soreness or redness at injection site, mild diarrhea, nausea, headache, itching Rare but serious: allergic reactions (rash, swelling, difficulty breathing), low potassium (hypokalemia), dizziness or heart rate changes Get emergency medical help if you have signs of an allergic reaction to Vitamin B12: hives
Certificate of Analysis Certificate of Analysis (COA) for this batch is available on request
Thereafter, 100 mcg should be injected once a month for life
If you are in Las Vegas or visiting the city and want to understand which option (if any) is right for your goals, Unicorn Medi Spa offers a thorough, pressure-free consultation designed to give you clarity before you commit to anything
