I love inject b 12. Ive tried the sublinguals, liquid and tabs and it just doesnt absorb the same. i started doing b12 shots in mexico, they have amps of trebdoce(lots of mcgs of b12, like 5000 to 10,000 per shot) for cheap but you can find it online, vet grade or human for cheap. you dont need a script for it, dont let anyone fool you, its not illegal to obtain. Appetite increases and energy increases and well, its just good for you.