Detailed answer

Azelaic acid is a skincare ingredient that has been proven to be effective in managing melasma. It works by inhibiting tyrosinase activity, which is responsible for melanin production in the skin. By reducing the activity of tyrosinase, azelaic acid helps to prevent the overproduction of melanin, which in turn reduces skin discoloration and hyperpigmentation. Additionally, azelaic acid has anti-inflammatory properties that can help calm and soothe the skin. It also has been found to regulate the production of keratinocytes, which can contribute to the improvement of melasma. Overall, azelaic acid is a beneficial ingredient to include in a skincare regimen for managing melasma.