My appetite was completely off since on aas and this prevented me from building the muscles I was aiming for. After trying all kinds of vitamins that didn’t really work I finally gave a “shot” to synthelamin, the injectible b-12 from synthetek, and after a week my hunger was back big time. It was such a big relief. Now I can have 5-6 meals a day.Shooting 3ml a week the bottle it's gona last long time. Already added 3 pounds of muscle.