Clinical and Pathological Evaluation of Hemp Seeds Oil Effectiveness in the Treatment of Alopecia Areata

Abstract

Background: Alopecia areata is an inflammatory, autoimmune, non-scarring, common patchy, hair-loss condition. Many treatment lines are used to treat alopecia areata, but all are palliative. Alternative medicine, like aromatherapy is expected to promote hair growth, but they are still lacking the scientific basis. Hemp oil is one of the aromatherapies that comprises polyunsaturated fat in approximately 76% involving “essential fatty acids” mainly omega-6 fatty acids” and lesser amount of “omega-3 fatty acids.” Objective: The aim of this study was to evaluate hemp seed oil effect in the treatment of patients with alopecia areata. Materials and Methods: This was a clinical trial planned to evaluate the efficacy of hemp seed oil in 20 patients with localized alopecia areata for 2 months. Plant material is hemp oil extract, applied at night daily for 2 months. Regrowth of terminal hair was evaluated by clinically and by trichoscope examination to evaluate the pathologic changes response. The assessment was done at 0, 4, and 8 weeks of the treatment. Results: After 8 weeks of the treatment, the response was marked in five (25%) patients, moderate in eight (40%) patients, and mild in two (10%) patients. Five (25%) patients revealed no response. There was a significant increase in the response of patients who were under the marked improvement group between 4 and 8 weeks of treatment (P < 0.05). Conclusion: Hemp seed oil can be considered as a promising therapeutic agent for localized alopecia areata. Additional clinical trials are advised to adjust the dose and determine the period of time, which is required to obtain a better result.