The development of natural antioxidants in the Gotu kola and Majapahit is a great potential . This research has been optimizing the composition of ethanol extract of Centella asiatica and leaves Majapahit as an antioxidants source using measure the free radical scavenging activity of DPPH . The results of research showed that both the ethanol extract of Centella asiatica and leaves majapahit has a total content of phenol. its shown with the ability to reduce reagent Folin Ciocalteu become blue colour. The composition optimazion of extract Centella asiatica:leaves majapahit = 30:70 has free radical scavenging activity of DPPH most well compared ethanol extract of Centella asiatica and leaves Majapahit . IC50 values for the composition of ethanol extract of Centella asiatica : leaves majapahit = 30:70 is 0,103 mg / mL .