AkfaLife B12 Vial 10 ml X 10 Oral Vial Akfa Life Vitamin B12 Vials Boost Energy & Neurological Health Pharmaroya Pharmaceutical Cosmetics Industry and Trade, OTC (Over the Counter), Food Supplements, Dermocosmetics, Vitamin B12 Deficiency: Signs, Symptoms, Reasons and Treatment Graphic Era Hospital Hi I bought the B12 injectable liquid but there's no use by date on it or how long you have to use it once it's opened. Anyone know the answer? TIA x There are so many benefits of Vitamin B12 and you may be deficient and not even know it! Come in and try a B12 injection today to feel the difference