The relationship between CBD and scalp inflammation was studied by a group of researchers from Italy and the United States. The basis of their research was to check the effect of cannabis-based shampoos in dealing with scalp inflammation. 50 subjects with scalp inflammation from psoriasis and seborrheic dermatitis were given shampoos with 0.075% broad-spectrum CBD. The results from the research showed that the shampoo effectively reduced the degree of symptoms experienced by the subjects. Other works of research conducted on the subject also came to the conclusion that CBD is effective in dealing with the symptoms of scalp inflammation.