B-12 / Methyl-B-12 are great for energy, appetite increase, and a ramped up metabolism.
I love the stuff, but it makes cutting difficult if you have poor self control. It will make you more energetic while you are cutting, but much more hungry....
The difference between inj and oral b12's is that if you have a true deficiency, the orals will help but only as you take them. If you are looking for the energy/metabolism/appetite increase, you have to get the injections. The two work completely different.
1000mcg daily is what I run to bulk. Anything you don't use up will just be peed out.
A lot of older folks end up doing 1000mcg once a week for health purposes.
@CB1
Well, you're in luck....I am about to start carrying it. I am running a batch of it over the weekend and it will be for sale as of Monday. Methyl-B-12 (the FAR superior and more expensive version) is better absorbed and utilized by the body than regular b-12 (cyanocobalamin). My products will be: EGH Labs Methyl-B-12 1000mcg/mL, 30mL and I will also produce a 10mL version.
I would caution the use of those veterinary products. I know we are talking about using UGL gear here, but you really don't know the conditions where the vet products are made. We could be getting heavy metals and other contaminants deemed safe for animals, but potentially harmful to us much smaller mammals. 😉
At least I know that my lab is extremely clean, sterile, and free of contaminants and the products that I make are all safe for consumption. Not only that, but the vet stuff generally hurts (higher alcohol content and or an unbalanced pH). My product will be painless, as is most human grade/pharmacy sold b-12 injections.