Solomon's Seal (Polygonatum biflorum)

I have found solomon’s seal to be, without a doubt, among the most valuable herbs for addressing joint injuries of all kinds. Solomon’s seal seems to have a remarkable ability to restore proper lubrication in the joints, and I believe also helps restore pliancy to tendons and ligaments by supplying moisture to them if they are atrophied. It is specifically indicated for tendonitis and other repetitive motion injuries.

Jim McDonald from his article on back pain.