. Pityrosporum ovale is a yeast-like lipophilic basiodiomyceteous fungus considered to be the causative agent for dandruff. The present work was undertaken to study the effect of antidandruff activity in PHO that was prepared by using the extracts of six medicinal plants namely Albizia amara (Mimosaceae), Achyranthes aspera (Amaranthaceae), Cassia fistula (Caesalpiniaceae), Cassia auriculata (Caesalpiniaceae), Datura stramoniuum (Solonaceae) and Azadirachta indica (Meliaceae). Candida sp is also a suspected causative agent for dandruff [2] .

The present study describes the comparative evaluation of phytoconstitu ents and in vitro antioxidant activity of ethanolic crude extracts of selected plant parts (stem) of Andrographis lineata (AL)and Andrographis serpyllifolia (AS) .The ethanolic crude extracts of Andrographis lineata stem (ALS) and Andrographis serpyllifolia stem (ASS) were analyzed for the presence of phytoconstitu ents (qualitative and quantitative) and further assayed for in vitro free radical scavenging assays namely-DPPH (1,1-diphenyl-2-picrylhydrazil), nitric oxide, total reducing power, lipid peroxidation and superoxide radical scavenging assays. In all the in vitro assays ASS showed its ability to scavenge free radicals in dose dependent manner than ALS which was comparable to the standards. Further the extracts (ALS and ASS) were analyzed in GC-MS for its chemical composition which revealed the presence of high content of flavones, glycosides unsaturated fatty acids and phenolic compounds in ASS which may be responsible for higher antioxidant capacity than the ALS extracts.