how many times a week and day do you use Jamaican castor oil on edges?

my edges are really thin and I'm devastated and embarrassed about them. I can't even put my hair up if I wanted to because I look really bald right there. I just want to break down and cry honestly. I need help, badly. 

1 Answer

Check out the article I Am a Chemist: Biotin and Castor Oil Don't Thicken Your Hair.