Ocimum Sanctum. Tulsi is also known as holy basil. The health benefits include oral care, respiratory relief and stress relief due to the high vitamin c content. Tulsi is beneficial for decongesting the lungs and prevents lung disorders and asthma. Moreover, Tulsi also contains an antioxidant as as Eugenol and is beneficial in reducing cholesterol levels. Additionally, Tulsi's anti-bacterial properties eliminate bad breath and destroys bacteria responsible for dental cavities, plaque and tartar.