Beverly International Muscularity is an advanced BCAA formulation in capsule form. It also contains chromium picolinate, zinc picolinate, and vitamin B-6 to further enhance uptake. If you're working out hard to reduce body fat and gain lean muscle tissue then Muscularity is for you. Research shows that the BCAAs, leucine, isoleucine, and valine, not only play a huge role in muscle maintenance and growth, but they may increase the amount of fat you'll lose. The BCAAs have also been shown to lower cortisol levels.