Jatamansi, also known as “tapaswani” in Ayurvedaand native to the Alpine Himalayas. It acts as a brain tonic and helps to improve memory and brain functions by preventing cell damage due to its antioxidant property.. Jatamansi (Nardostachys Jatamansi) Jatamansi is a small shrub whose rhizomes may speed hair growth. It's been shown to increase hair growth in alopecia caused by chemotherapy but if you want to see some real difference, use a Jatamansi face pack regularly and observe the glow magically return to your face