Sponges with the types Stylissa massa and Ephydatia sp. from Enggano Island is a marine biota that has secondary metabolite compounds that have the potential to have antioxidant activity and are toxic. This study was to explore the potential of antioxidant activity and toxicity of both sponge species, S. massa and Ephydatia sp. The DPPH method is the method used to explore antioxidant activity …