One-Two punch: Bust Fat, Boost Muscle + If you’re ready to leave that weight-loss plateau behind and maximize muscle gains after each workout, simply add 1 scoop of our new Vanilla IsaPro® to 1.5 scoops of your IsaLean Shake®. This powerful and tasty product combination provides 36g of protein. That’s 56% more protein than IsaLean Shake alone.