Onion juice
If you can bear the onion juice smell, you may realize that benefits are worth bearing its smell. Onion juice is used successfully to cure patchy alopecia areata by offering hair growth. Onion juice also seems to enhance circulation. Animal studies reveal that keratin growth factor and improving blood flow to the cuticles. You can take a few onions and blend them, then squeeze the juice of them. Put the juice in your scalp and hair then leave it in for almost 15 minutes. Then shampoo as you normally do.