Though many of these products claim to improve the shine, strength, volume, and texture of hair, there is very little research on the benefits of black seed oil for hair health. Thanks to its antimicrobial and antioxidant properties, black seed oil is often added to hair care products, including hair masks and shampoos ( 11). Some studies in humans and animals suggest that black seed oil could reduce the severity of psoriasis, but more research is needed. More research is needed to investigate how black seed oil may affect psoriasis in people. It’s important to note that this study used black seed oil combined with other ingredients, so there’s no way to know in this case whether black seed oil was behind the beneficial effects. They found that 83% of participants experienced at least a 75% reduction in their psoriasis severity after applying the herbal cream to the affected area daily for 12 weeks ( 7). However, one small study in 12 people evaluated the effects of an herbal cream containing black seed oil, along with other ingredients, like olive oil, tea tree oil, cocoa butter, and vitamins A and B12 ( 7 ). There’s not much research currently available about the effects of black seed oil on psoriasis in people. One animal study found that applying black seed oil to the skin decreased inflammation and reduced symptoms of psoriasis in rats ( 6). Interestingly, some studies have found that black seed oil could aid in the treatment of psoriasis, a chronic inflammatory condition characterized by scaly red patches on the skin ( 5).
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