3 Cool Benefits About Castor Oil😱 by Bella Ramirez 3 Cool Benefits About Castor Oil😱If you put this in your eyelashes overnight or you can put it at anytime but then you have to REMOVE after 5 hours or it really depends on you 💚It also works on hair!!!!!!!!!!!!! First you will have to put the oil in your scalp and if you want you can put it all over your hair. And also if you have split ends then that's perfect. Then you wash your hair on what ever time you want. But at least do it for 3-4 hoursThe eyebrows is pretty much as the same as the eyelashes. You can comb the oil in your eyebrows and wait for at least 3 hours or overnight!Remember keep in mind the process takes time. It's not a magic overnight potion. You will at least see difference in 1-2 weeks.