Introduction: Microneedling (MN) is a minimally invasive procedure involving the induction of percutaneous wounds with medicalgrade needles. In this literature review, we investigate clinical data on MN for the treatment of hair loss disorders. Methods: A literature search was conducted through PubMed up to November 2021 to identify original articles evaluating the use of MN on hair loss disorders. The database was searched using the following keywords: ''microneedling,'' ''micro needling,'' ''micro needle,'' ''microneedle,'' ''needle,'' ''dermaroller'' and ''alopecia,'' ''hair loss,'' ''alopecia,'' ''areata,'' ''cicatricial,'' or ''effluvium,'' Results: A total of 22 clinical studies featuring 1127 subjects met our criteria for inclusion. Jadad scores ranged from 1 to 3, with a mean of 2. As an adjunct therapy, MN improved hair parameters across genders and a range of hair loss types, severities, needling devices, needling depths of 0.50-2.50 mm, and session frequencies from once weekly to monthly. Across 17