Melasma is a chronic acquired disorder of facial hyperpigmentation that significantly affects quality of life. Both intralesional tranexamic acid and mandelic acid chemical peels are effective treatment options with favorable safety profiles in darker skin types. However, comparative evidence in South Asian populations is limited. This study aims to compare the efficacy, safety, quality of life outcomes, and patient satisfaction of intralesional tranexamic acid versus mandelic acid peel in patients with facial melasma treated at Combined Military Hospital Abbottabad.

This quasi-experimental, non-randomized controlled trial will be conducted in the Department of Dermatology, Combined Military Hospital Abbottabad. A total of 120 patients aged 18-45 years with clinically diagnosed facial melasma will be enrolled and allocated alternately into two groups. Group A will receive mandelic acid chemical peels every two weeks for six sessions. Group B will receive intradermal tranexamic acid injections every two weeks for six sessions. All participants will receive sunscreen and photoprotection counseling. Outcomes will be assessed using Physician Global Assessment, modified Melasma Area and Severity Index (mMASI), MELASQoL questionnaire, adverse event monitoring, and patient satisfaction over a 12-week period.

Inclusion Criteria:

Age 18-45 years. Clinical diagnosis of facial melasma. Fitzpatrick skin phototypes III-V. Disease duration of at least 3 months.

Exclusion Criteria:

Pregnancy or lactation. Known hypersensitivity to tranexamic acid or mandelic acid. Active facial dermatoses or infection. Personal or family history of thromboembolic disease. Coagulation disorders. Systemic retinoid use within 6 months. Oral contraceptive or hormone replacement therapy within 6 months. Use of topical or systemic depigmenting agents within 4 weeks. History of keloid tendency.

Individual participant data will not be made publicly available.

Outcome assessments will be performed by a blinded investigator.