St. Francis Bladderwrack Tincture, Atlantic Seaweed Traditionally Used as a Natural Source of Iodine

by St. Francis Herb Farm

St. Francis Bladderwrack Tincture Details Bladderwrack is a brown seaweed found along the Atlantic coast, named for the air bladders that keep its fronds afloat. It was the original source of iodine, isolated from it in 1811, and it remains the herb most associated with thyroid support for that reason. That iodine content is the whole reason to take it and the whole reason to be careful with it. I

Prices at Canadian retailers

RetailerSizePrice (CAD)Availability
Vitamart50ml$20.95Out of stock

Prices last synced on 2026-09-15. Confirm at the retailer before buying.