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Description
Needle Gauge (Thickness): The gauge number is inverse to the needle's thicknessa higher gauge means a thinner needle

Quick and Convenient: B12 injections offer a fast and efficient way to raise your B12 levels

Some individuals may experience slight soreness or redness at the injection site, but these side effects are usually temporary and subside within a few hours to a day.

It is a huge hurdle we and others in the B12 community are working on to overcome
For example, Sean, our resident 40-something reviewer, saw his time to sleep quicken by about 10 minutes (as reported by his Eight Sleep smart bed)
