IV Therapy, the fastest way to hydrate and supplement your dietary and vitamin requirements Pure Beauty Esthetics owned by Erika Mopress, CPCP serving Santa Cruz, Monterey, San Jose 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 Delighted I received my B12. I don't see a use by date on them or am I missing it? Neurobion is a combination of vitamin B1, B6 and B12 which supports healthy nerves and reduces symptoms of numbness and tingling. Neurobion injection is available at DnD to supplement those with vitamin Compounded Vitamin B Complex Injection Empower Pharmacy Foliphos Injection Greyhound Products Direct