For hair growth must I wash out the castor oil in the morning or can I leave if in?

I want to regrow hair by my temples. I have straight hair. I have the Jamaican castor oil. I saw the instructions, to put it in the scalp and hair ends before going to bed.  My question: must I wash the oil out in the morning or can I leave it in?

1 Answer

Yes. Please wash it out to remove stickiness.  Letting it stay overnight absorbs the nutrients already.