This Vitamin B-12 shot can be used at home as an injection, under instruction of a doctor
The realistic caveat is that long-term maintenance without pharmacologic or procedural support is difficult for most people which is the entire reason the rest of this list exists
Improved energy levels : Provides a noticeable increase in energy, keeping you motivated and active
Vitamin B12 is key for nerve health
Some people with vitamin B12 deficiency may experience depression or mood changes, and vitamin B12 injections may help to improve mood in these cases
Deeply elucidating molecular anti-aging mechanisms, investigating interactions with other aging-related signaling pathways (such as mTOR, AMPK, etc.), improving the functional network, and providing theoretical support for more efficient anti-aging interventions