Cos De BAHA Azelaic Acid 10% Serum (AZ) is a 30 ml face serum for uneven-looking tone and texture. Its 10% azelaic acid formula also includes panthenol, niacinamide and hyaluronic acid to complement a moisturising routine.
Why choose Cos De BAHA Azelaic Acid 10% Serum?
- 10% azelaic acid: A stated concentration for texture and tone-focused skincare.
- Mark appearance: Supports a routine for the look of lingering blemish marks.
- Conditioning blend: Panthenol and niacinamide accompany the azelaic acid.
- Hydration support: Hyaluronic acid adds moisture before your cream.
Is it right for you?
Good for: Combination or blemish-prone skin concerned with uneven texture, visible redness or lingering marks, provided the formula is tolerated.
If you want to compare a lower stated azelaic acid level, see Cos De BAHA A5 Serum.
Good to know: 30 ml · AZ version · 10% azelaic acid · Contains niacinamide and panthenol
Key ingredients: Azelaic acid, panthenol, niacinamide and hyaluronic acid.
How to use
Apply a small amount after cleansing and toner, avoiding the eyes and lips. Start a few times a week, follow with moisturiser and increase only if comfortable. Use morning or evening as tolerated, with sunscreen during the day.
Introduce other exfoliating or retinoid products separately. Reduce frequency or stop if persistent irritation develops.
FAQ
What is the price of Cos De BAHA Azelaic Acid 10% Serum in Bangladesh?
The 30 ml pack is currently ৳1,250 at Euros Belle. Prices may change.
Is this the same serum as A5?
AZ contains 10% azelaic acid. A5 is a separate formula containing 5% azelaic acid and 2% niacinamide.
Can I begin using it twice daily?
Start less frequently so you can assess comfort. A higher concentration can be harder to tolerate for some skin, and more frequent use should depend on your response.
Shop more Cos De BAHA products or browse all serums and ampoules.

















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