When your skin needs clarity, evenness, and a calmer glow.
Cos De BAHA Azelaic Acid 10% Serum is a lightweight yet active serum for skin that feels uneven, dull, red, or prone to breakouts. Its nourishing formula helps the skin look smoother and brighter, while adding a soothing and refining step to your routine.
Azelaic acid is a versatile skincare ingredient often used when the skin needs help with uneven tone, blemish marks, and clogged-looking skin. In this serum, it’s combined with moisturizing and skin-softening ingredients so the final result doesn’t feel too harsh or drying.
The perfect choice for those who want to add a clarifying yet elegant step to their routine—for skin that needs a calmer, smoother, and radiantly balanced finish.

After cleansing and toning, apply 1–2 drops to the face or only to areas that need a more even tone and clarity. Start by using it 2–3 times a week in the evenings and increase usage depending on your skin’s tolerance. Follow with a moisturizer.

For external use only. Avoid contact with eyes. Discontinue use if skin irritation occurs. Keep out of reach of children. Avoid combining this product with multiple strong exfoliating or active products in the same skincare routine. Use sunscreen during the day.