L-Leucine

NutraBio L-Leucine delivers pure free form leucine, the essential amino acid your body relies on to build and maintain lean muscle. Available as an unflavored powder or easy capsules, it gives you a simple daily way to support muscle, recovery, and strength over time.‡ Leucine is one of the three branched chain amino acids, and research identifies it as the key signal that turns on muscle protein synthesis, the process your body uses to repair and build muscle tissue. Your body cannot produce leucine on its own, so it has to come from food or supplementation. A dedicated daily serving helps make sure your meals carry enough leucine to put that process to work, which matters even more as muscle becomes harder to keep with age.‡ Every serving is fully disclosed on the label with no artificial colors, flavors, or sweeteners. Made in our cGMP-inspected facility in the USA, every batch is third party tested, with independent results available at CheckMySupps.com.