BackgroundFrontal fibrosing alopecia (FFA) is a cicatricial alopecia with rapid epidemic growth. However, there is no agreement on the best therapeutic approach.AimsTo compare the therapeutic effects of finasteride as a first‐line systemic treatment of FFA versus hydroxychloroquine as a relatively safe and effective immunosuppressive drug.MethodsThirty‐four female FFA patients were randomly assigned to receive either 400 mg/day of hydroxychloroquine or 2.5 mg/day of finasteride for 6 months. Topical treatments in both groups include pimecrolimus, mometasone, and minoxidil. Treatment efficacy was evaluated using the Frontal Fibrosing Alopecia Severity Score (FFASS), photography, and trichoscopy after 3 and 6 months.ResultsBoth the finasteride and hydroxychloroquine groups showed significant improvements in FFASS and trichoscopic scores (p < 0.01). However, there was no significant difference between the two groups during the study. Photographic assessment showed that more than 60% of patients in both groups had improved without statistically significant differences between the two groups.ConclusionsBoth finasteride and hydroxychloroquine are equally effective, safe, and well‐tolerable for treating FFA patients.