Melinjo leaves (Gnetum gnemon L.) have been widely researched in their use as an efficacious medicinal plant. Flavonoid as secondary metabolite compounds contained in melinjo leaves have the potential to be antioxidants. Antioxidant activity test on the ethanol fraction of melinjo leaves was tested with in vivo method with the aim of determining its effect on malondialdehyde (MDA) levels, catal…