Yes, you can use azelaic acid with hyaluronic acid in your skincare routine. Azelaic acid is a multifunctional ingredient that has anti-inflammatory, antibacterial, and exfoliating properties. It is commonly used to treat acne, rosacea, and hyperpigmentation.

Hyaluronic acid, on the other hand, is a natural substance found in the skin that helps to retain moisture, keeping the skin hydrated and plump. It is often used in skincare products for its excellent moisturizing properties.

Both azelaic acid and hyaluronic acid can be beneficial for the skin, and they work in different ways. Azelaic acid helps to exfoliate the skin and reduce inflammation, while hyaluronic acid provides hydration and improves the skin's moisture barrier.

When using these two ingredients together, it is recommended to apply them in separate steps of your skincare routine. Azelaic acid is usually applied after cleansing and toning, as a targeted treatment on affected areas. Once the azelaic acid has absorbed into the skin, you can follow up with a hyaluronic acid serum or moisturizer to provide hydration.

Always remember to patch test any new products or ingredients before incorporating them into your routine, especially if you have sensitive or reactive skin. It is also important to follow the instructions provided by the product manufacturer and consult with a dermatologist if you have any specific concerns or questions about using these ingredients together.