Fina is GREAT for both, depends on diet and what ya add to it will determine your outome. eat about8-9x your bidy weight, add some winny, T3 and clen you have a killer cutting cycle. Add some test and eat 25x your body weight and you have a grewt mass cycle. Fina is simply great for packing on lean, waterless mass weather cutting or bulking. I was 249 last night, thats up13lbs in less than 4 weeks and I am on a cutting cycle, reduced cals and T3.