ESSIAC From Canada International helps restore people’s power to heal themselves, overcome obstacles, and live out their own legacy with its immune-boosting ESSIAC. Consisting of slippery elm, burdock root, sheep sorrel, and Indian rhubarb, ESSIAC From Canada International’s solution stays true to the work of Canadian nurse Rene Caisse, who in 1922 created Essiac inspired by Ontario’s Ojibwa nation’s herbal remedies. It is available as an herbal powder, vegetable capsule, and herbal extract.