Health/Beauty This Oil Is Great For Thickening and Re-growing Hair, Eyelashes and Eyebrows November 11, 2016 0 13082 Share on Facebook Tweet on Twitter tweet 1. Castor Oil Some of us have very scanty eyebrows and have to ‘invent’ them with cosmetics. Or scanty eyelashes. And perhaps not too much hair. Well, there’s a simple home remedy for that.