I use castor oil and rosemary on my edges to help regrow them. When I am finished if I have some excess oil on my hands I rub it on the rest of my hair. This has helped thicken my hair a bit. I have now added flowers of sulphur (sublimed sulphur) to the mix, about a tablespoon. I was wondering that if I was to use this on my edges and then rub any excess on my hair will my hair dry out?