ABSTRACT The present invention is a method and composition for preparation of sun protection cream. The ethyle acetate extract of piper betel leaf and Cinnamomum verum bark is macerated and the solvent is removed by rotary evaporator. The DPPH radical scavenging assay and IC50 value of the extract is determined, so as to prepare nanoparticles of ethyl acetate extract of piper betel leaf and Cinnamomum verum bark extract. Thereafter, a portion of carbopol to nano particiles is mixed such that the sun protection cream possesses a good spreadability properties to expand over the skin. The said nanoparticles are prepared using 13µg/ml and 18µg/ml of ethyl acetate extract of Piper betel leaf and Cinnamomum verum bark extract. The sun protection cream is prepared by using 10mg/ml of nanoparticles and 1, 1.25 and 1.5% w/v of carbopol.