b12 self injections video Vitamin Injection Self-Administration Painless Self Injection - 1.3

50 mg per vial Purity: 99% (HPLC verified) Container: sealed glass vial (lyophilized powder) Certificate of Analysis: lot-specific COA available See the FDA Disclosure, Storage Instructions, and RUO tabs for handling, storage, and regulatory information

Unlike other vitamins the body does not synthesize B12 on its own, on the contrary, it obtains the vitamin from animal sources such as red meat, fish, milk, and eggs

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High oral bioavailability Caco-2 cell assays showed excellent passive and active membrane transport with no detectable efflux (Neelakantan et al., 2018)