This extract has the second-best name of all of our active ingredients (the best name is Witch Hazel, of course). Bladderwrack is a type of seaweed that is particularly common in the North Atlantic, and especially around Britain and Ireland.
Bladderwrack is naturally rich in iodine, but also numerous other sea minerals. You'll also find Beta Carotene and Potassium in good quantities. Some traditional medical traditions use bladderwrack to cleanse, purify and detoxify.