The Best How Long Should I Keep Castor Oil On My Hair References. Tropic isle living jamaica black. Web varalakshmi suggests oiling at least twice a week, ideally a night before you plan to wash your hair.

Web let the oil sit for 45 minutes to an hour. Web for the best results, castor oil should be left on for a minimum of 30 minutes. If you’re looking to brighten up your hair and make it.