AI & Tech

Tired all the time? What to know about B12 and if it actually boosts energy levels

If you spend time on social media, you may have seen med spa owners and employees describing vitamin B12 shots as a pick-me-up.

✦ Extractive summary — built from the sources' own reporting•From 1 source•1 min read•Updated November 8, 2026, 3:00 PM UTC
Key points
  • But most people already have plenty of B12, and for them, extra doses aren’t likely to help.
  • But do they actually make you feel more energized?
  • When they’re run down or facing a busy week, they say, a quick injection gets them through.

Some med spas say many people feel an energy lift within a day or two and recommend a shot every few weeks.

B12 is essential to your health, and people who don’t get enough of it can feel exhausted or worse.

How this summary was made: extractive summary — built from the sources' own reporting. It is drawn only from the reporting of the sources listed below — read the originals for full detail. How we summarize →

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