are b12 injections more effective than tablets Shots vs Pills: Which Option Is Right for You B12 Injection vs. Oral Supplements:

Many people experience hair loss after pregnancy

Supports Hair, Skin & Nails Healthy B12 levels contribute to stronger hair, healthier skin, and improved nail growth

In some cases, especially at the beginning of treatment for a severe deficiency, injections might be given more frequently (e.g., daily or every other day) for a short period before transitioning to a maintenance schedule

There is also the issue of muscle loss

I felt some change in energy but not really with helping diminished my appetite

It can boost your mood and energy and strengthen your immunity, but it also has another unexpected benefitit can be used as a hangover remedy