In vitro studies are a simple, calorimetric qualitative method that may be used to simulate the in vivo system and assist assess the antioxidant activity of Seaweed methanol extracts. DPPH (1,1-diphenyl-2-picryl hydrazyl), nitric oxide radical, hydrogen peroxide, ABTS radical scavenging, and Total antioxidant capacity (TAC) inhibitory assays were used...