Castor oil is, like coconut oil, less expensive than argan oil, and provides similar benefits like argan oil does. Most people use castor oil as a conditioning treatment and wash it off after an hour or two from application time. Both thicken hair, give it great shine, and nourish hair follicles for their production.
But you can’t use Castor oil regularly rather than Argan oil. Try mix Castor oil with Argan Oil for hair regrowth or any hair problem. These both together can work magically. As castor oil is very thick it should be mixed with other oils having thin consistency. There are many oils which you can use in combination of castor oil such as coconut ,olive ,almond rosemary oil etc.