There is evidence to suggest that the use of the oil, applied directly on the scalp, can help promote hair growth. A study published in 2014 by a group of Malaysian scientists found that a mixture of coconut oil and black seed oil applied to the scalp resulted in the best results.
The study compared hair growth, when various oil extracts were applied to the scalp, with the two aforementioned oils generating the best results.
The scientists behind the study looked at past evidence, suggesting that black seed oil carried a high level of essential fatty acids, as well as linoleic acid. This useful chemical has previously been found to be useful in treating premature hair loss and greying.
Loss of hair colour is usually caused by a declining number of special cells in the hair follicles which secrete melanin, so kalonji oil like castor oil could be potentially slowing the ageing process, by keeping these special cells around for longer.
Another study from 2014 found that when people experiencing hair loss started using coconut oil mixed with extracts, including black seed oil, hair loss was reduced by up to 70 per cent, when compared with those treated with just coconut oil by itself.
One study held in 2013, published by the Journal of Cosmetics, Dermatological Sciences and Applications, looked at the use of black seed oil on a specific hair loss conditions affecting women. Specifically, they examined a distressing condition called telogen effluvium, which affects the scalp, leading to hair thinning and loss of hair.
Despite including only 20 participants, the study found that treating women with this condition using the oil helped them dramatically. Participants noted a 70 per cent improvement in their condition, directly as a result of using the oil, the study found.
It’s undeniable that this study and others like it have gone some way to establish and clarify the use of black seed oil for hair. However, they are also limited in the scope and size. - 41 minutes ago