Azelaic acid serum primarily reduces inflammation, redness, and breakouts. It also helps to even skin tone by inhibiting melanin production, making it effective for hyperpigmentation like melasma and post-inflammatory hyperpigmentation.

Yes, azelaic acid is generally safe for daily use, but it's best to start with a lower concentration and gradually increase frequency as tolerated. Monitor for any signs of irritation and adjust usage accordingly.

Neither is inherently 'better'; they address different concerns. Azelaic acid excels at treating redness, breakouts, and hyperpigmentation, while retinol is primarily used for anti-aging, boosting collagen and cell turnover. Some people can use both, at different times of day or on alternate days.

Avoid pairing azelaic acid with harsh exfoliants like strong AHAs/BHAs at the same time, as this can lead to excessive irritation. Monitor skin tolerance and consider alternating use on different days if combining with other actives.