The present invention is related to a method for extracting substance from starfish, able to extract certain ingredient stored in starfish, wherein the certain ingredient includes polysaccharides, ceramides, amino acids and trace minerals the substance extracted from starfish is absorbed by skin easily and has multi-skin maintain effect, including moisture, whitening, anti-aging and anti-inflammation.本發明係在於提供一種自海星萃取物質的方法,能夠成功萃取出海星內所含的重要成份,包括多醣(polysaccharides)、神經醯胺(ceramides)、胺基酸(amino acids)以及礦質微量元素(trace minerals),且該海星萃取物具有多重保養功效,易於被皮膚所吸收,能確實達到保濕、美白、抗老化、抗發炎等的效果。步驟(S01)至步驟(S09)‧‧‧為本發明一種自海星萃取物質的方法步驟