This Yang Jing combination of herbs supports muscle toning, building structural integrity, strength, and general resilience of the body. Great for construction workers, health workers, and anyone who endures physical exertion. Endurance can also help fortify the sexual energies. Eucommia bark is the number one bone-tendon-ligament supporting herb in TCM. Morinda is a Yang Jing herb for general endurance, and Astragalus supports “upright Chi.”