- I use Jamaican Black castor oil on my scalp. I dilute it with some coconut oil because JBCO is so thick. I use coconut oil with it because it can penetrate the hair shaft and my hair likes it. Also, it's less greasy than olive oil.
I apply it everyday before I go to bed. I massage my scalp with it (massaging your scalp may also stimulate hair growth).
- Yes, I have DEFINITELY seen change. Still see it. It REALLY improves hair growth. I document my hair growth carefully and since using Jamaican Black Castor oil my hair has grown twice as fast at least.
I cannot yet tell whether it made my hair thicker too, because I only use it on my scalp.
- About 4 months.