b12

What is the best way to supplement with b12 should I use the pill supplements or should I get the injections? I have low energy so I think that this might help, and what is the best place to get it

who on here uses B12 as injections? I went to an anti-aging Clinic that offered free injections and they had me fill out a bunch of crap and then wanted me to sign up for a monthly plan. I ended up just walking out and handing the form back to the lady. I think it's best for me to do this on my...