Yeah I use vet b-12. I get it for $8 or so for 250 mls and I like it. I have never had a problem with it. It makes me MAD HUNGRY but it really improves my mood. I am a pretty angry F U C K when I am not on it. I use it year round. It really helps with my temperament and hunger when on cycle, although I have NO PROBLEMS eating enough. I can eat with the champions....lol...I am lucky as I have to hold back from eating too much sometimes.