Bladder wrack also contains a powerful anti-inflammatory called fucoidan. In our experience, this is one of the best ingredients in the battle against redness of the skin. Fucoidan also is a great ally in the fight against anti-aging as it promotes elasticity in the skin Bladder wrack is a great source of potassium, iron, calcium and zinc (it also contains vitamins A, B complex, C and E), it helps flush nasty toxins from the skin which can cause fine lines and wrinkles. Bladder wrack can also be used in treatment of minor burns and insect bites.