I keep reading about how if you apply castor oil on your lashes at night that your lashes will eventually grow out thick and long. I tried it, it works! (Thanks Miss _Cherokee!) This got me thinking...Castor oil, if applied to the scalp, will probably promote growth of my hair long and thick, just like my lashes. Has anyone experienced castor oil on the scalp for growth? I'm beginning to like castor oil as a sealant better than coconut oil. Even though research suggest that coconut oil penetrates the hair shaft and is best for sealing in moisture. I wet my Natural 4b condensed thick hair with Oyin's Greg Juice and seal with castor oil. The results? Beautiful curly hair. I cant believe it!!!