Effect of Azelaic Acid on Hyperpigmentation

A comparative study of 20% azelaic acid cream versus 5% tranexamic acid solution for the treatment of postinflammatory hyperpigmentation in patients with acne vulgaris: A single-blinded randomized clinical trial (2023)

Comparative study of therapeutic effects of 20% azelaic acid and hydroquinone 4% cream in the treatment of melasma (2011)

Efficacy and safety of azelaic acid (AzA) gel 15% in the treatment of post-inflammatory hyperpigmentation and acne: a 16-week, baseline-controlled study (2011)

Azelaic acid 20% cream in the treatment of facial hyperpigmentation in darker-skinned patients (1998)

The treatment of melasma. 20% azelaic acid versus 4% hydroquinone cream (1991)

Double-blind comparison of azelaic acid and hydroquinone in the treatment of melasma (1989)