Sargassum sp. has a wide and varied distribution. This type of seaweed is considered a dominant plant and is distributed throughout Indonesian waters, one of the dominant seaweed locations is Bangka Belitung. Brown seaweed has been identified to contain pigments (fucoxanthin, astaxanthin, carotenoids) and polyphenols (phenolic acids, flavonoids, tannins), which function as natural antioxidants.…