Abstract: The present study represents the importance of curcumin which is present in turmeric. Curcumin is belonging to the group of curcuminoids which are natural phenols responsible for turmeric yellow colour. The main constituent of this curcuminoid is it contains enormous number of therapeutic properties such as antioxidant, anti-inflammatory, radio protective, anti-cancer and neuro protective. Curcuminoid is used as dietary supplements, food additives, medical treatment and cosmetics. An average human should consume 2500 mg of curcumin per day to avoid the carcinogenic and cardiovascular defects. Various samples were analysed using improved HPLC method.