can you use expired b12 injections Are vitamin syringes still effective? Do B12 Shots Expire or

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However, this storage is not responsible for high vitamin B12 levels and such elevations are rarely due to excessive dietary intake 4 , 5

We propose the following protocol: Five units injected at the supraorbital nerve (V1), infraorbital nerve (V2), and mental nerve (V3) (Figure)

The evidence base requires appropriate clinical trials, with additional endpoints including clinical symptoms of patients and additional biochemical parameters beyond plasma B12 levels alone before these alternative routes can be recommended with confidence in clinical guidelines