Mamaearth Onion Hair Fall Shampoo for Hair Growth at Rs.331. Onion Oil stimulates the scalp, promoting blood circulation and hair regrowth. Plant Keratin strengthens hair, and makes it frizz-free. You can earn an extra GoPaisa(GP) Cashback/Rewards on your every order while shopping via GoPaisa. You can check Cashback/Rewards rates to know about exact rate of Cashback/Rewards amount. Buy now!