what happens if i inject sublingual vitamin b12 How to Give Injections at Home to Yourself · PA Relief Sublingual means under the tongue.
Description
Checking Treatment Effectiveness : If you've been prescribed vitamin B12 supplements or injections, this test can be used to monitor how effectively they're working
One of the most well-known benefits of B12 is its ability to increase energy levels

Vitamin B12 is primarily found in animal products such as meat, fish, eggs, and dairy

As with any supplement or medication, individual responses vary
