B12 Shots at Home: How, Where & How Often to Inject Yourself AZ IV Medics 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 This Wednesday the IVY will be back at Goodwin's offering wellness injections. They have adjusted their hours this month to accommodate those who need to come after work. So stop by from How Can Vitamin B12 Shots Help Me Feel Refreshed Dr. Nasseri