Botanical Name: Fucus vesiculosus. Natural bladderwrack is a seaweed that's been a star of traditional medicine for centuries. Bladderwrack powder is rich in fiber, calcium, magnesium, potassium, zinc, and vitamins A and C. Plus, its high concentration of iodine may help support a healthy thyroid.*  Organic bladderwrack grows along the coastlines of the Atlantic and Pacific Oceans and the North and Baltic Seas. It is part of the Fucaceae family. Sprinkle a bit of bladderwrack herb in soups and spice blends - it has a strong aroma, so a little goes a long way. Origin: Canada