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If needles aren't your thing, B12 supplements are also available in capsule, tablet, and liquid forms, which can often be purchased over-the-counter (via Medical News Today)

Vladimir Khavinson, who now heads the Saint Petersburg Institute of Bioregulation and Gerontology [1]

These details help ensure accountability across large orders

Both methods work, but injections provide stronger benefits, while topical use only targets skin and hair

There is also a real trade-off between seller types