Use your azelaic acid product once per day, either in the morning before your sunscreen or at night, before your moisturizer.

Use a generous amount of product to remove all dirt, sunscreen or makeup in one step. There is no need to double-cleanse. It is a good idea to always finish cleansing with a splash of clean water to remove any residue from the cleanser. Most people only need to cleanse their skin with a cleanser once per day, at night. It is the first step of a night skincare routine.
The active ingredient in this product - benzoyl peroxide - can lead to dryness and irritation. This is why we recommend limiting using this cleanser to every other day (instead of daily). Avoid the area around your eyes when applying this cleanser. Please note that this ingredient can bleach textile (for example, towels).