A B12 shot is an intramuscular vitamin injection, usually administered into the deltoid muscle of your upper arm or, occasionally, the upper outer hip
A Systematic Review and Meta-Analysis of B Vitamin Supplementation on Depressive Symptoms, Anxiety, and Stress: Effects on Healthy and At-Risk Individuals
There are gastrointestinal conditions affecting absorption
Facial scars, fine lines, bags under the eyes, sagging skin, and wrinkles can make you look older, diminishing your self-confidence
Vitamin B12 allergy manifesting as lymphomatoid contact dermatitis
If symptoms persist despite regular oral supplementation, absorption may be limited