Cos De BAHA Azelaic Acid Hinokitiol Clear Skin Serum (AC) is a 30 ml multi-active face serum. The manufacturer lists 10% niacinamide, 5% azelaic acid and 0.1% retinol alongside salicylic acid and hinokitiol for texture and uneven-looking tone.
Why choose Cos De BAHA Azelaic Acid Hinokitiol Clear Skin Serum?
- Combined active levels: Pairs 10% niacinamide with 5% azelaic acid.
- Retinol inclusion: Contains 0.1% retinol according to the manufacturer.
- Texture-focused blend: Salicylic acid and hinokitiol accompany the main actives.
- Moisturising support: Hyaluronic acid adds hydration within the formula.
Is it right for you?
Good for: Blemish-prone or combination skin seeking a multi-active evening serum, when comfortable with both retinol and acid ingredients.
For an azelaic acid option with a different ingredient blend, compare Cos De BAHA A5 Serum.
Good to know: 30 ml · AC version · 10% niacinamide · 5% azelaic acid · 0.1% retinol · Includes tea tree oil
Key ingredients: Niacinamide, azelaic acid, retinol, salicylic acid, hinokitiol, tea tree oil and hyaluronic acid.
How to use
Introduce a small amount on clean, dry skin two evenings a week, avoiding the eyes and lips. Follow with moisturiser and increase frequency slowly only if comfortable.
Use sunscreen each morning. Avoid adding other retinoids or exfoliating acids at the same time while assessing tolerance. Reduce use or stop if persistent stinging, redness or dryness develops.
FAQ
What is the price of Cos De BAHA Azelaic Acid Hinokitiol Clear Skin Serum in Bangladesh?
The 30 ml pack is currently ৳1,350 at Euros Belle. Prices may change.
Does this azelaic serum contain retinol?
Yes. The AC formula includes retinol, listed by the manufacturer at 0.1%, together with azelaic acid and other actives. Consider the full blend when planning your routine.
How is it different from AZ?
AZ centres on 10% azelaic acid. AC combines 5% azelaic acid with 10% niacinamide, retinol, salicylic acid and hinokitiol, so it has a different formula and introduction routine.
Shop more Cos De BAHA products or browse all serums and ampoules.

















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