youtube b12 injection Vitamin C and Techniques B12 Injections: Ultimate IV &
Description
Vitamin drip with B12 and/or B complex: 3045 minutes, including setup

However, I do think B12 injections are much more useful, as this vitamin requires several more steps to absorption

Immediate : Some notice better energy or alertness within 2448 hours

This translates to more sustained energy, better metabolic flexibility and easier maintenance of lean body composition over time
