Yes, vitamin B12 injections are considered safe when administered appropriately
It is not approved anywhere in the world yet
Low insulin levels and IR are thought to be protective factors against obesity-associated complications
Visible changes in brightness and evenness of skin tone may take several weeks to months, depending on baseline pigmentation, dose, route of administration, and adherence to sun protection. Results are often subtle and natural-looking, and ongoing maintenance may be required to sustain benefits, especially in individuals with high sun exposure
Instead, put them in a special sharps disposal container approved by the FDA for safe disposal of needles and syringes
Self-directed combination therapy is strongly discouraged due to safety concerns