Bladderock, also known as bladder wrack or Fucus vesiculosus, is a type of brown seaweed commonly found along the coasts of the North Atlantic. It is characterized by its air-filled bladders that help it float, allowing it to access sunlight for photosynthesis. Bladderock is often used in traditional medicine and has applications in dietary supplements due to its rich content of iodine and other nutrients. Additionally, it plays a role in marine ecosystems, providing habitat and food for various marine organisms.