Efficacy and Safety of Topical Vitamin D Analogue in Treatment of Female Pattern Hair Loss

Inclusion Criteria: * All females with FPHL aging 15 - 60 years Exclusion Criteria: * Patients with other hair loss disorders as telogen effluvium, anagen effluvium, alopecia areata, cicatricial alopecia and trichotillomania. * Patients with normal serum vit.D level * Oral or parentral vitamin D supplementation for the last 3 months * Treatment with topical vitamin D analogs in the past month * Patients who received hair tonics or any specific hair therapy over the last 3 months prior to enrollement in the study. * Patients with diabetes mellitus, renal disease, thyroid and parathyroid abnormalities, or autoimmune diseases. * Patients who are pregnant, lactating or on contraceptive pills.