429,00 Kč
The Cos De BAHA Azelaic Acid 10% Serum is formulated to improve uneven skin tone while supporting clearer-looking skin. Moreover, this lightweight serum helps calm visible redness and refine overall texture. Because the 10% azelaic acid concentration works gently on the skin surface, it supports balanced care without heaviness. If the skin appears dull, uneven, or prone to blemishes, this serum offers targeted daily clarification.
Why the COS DE BAHA Azelaic Acid 10% Serum Improves Skin Clarity
This serum focuses on refining skin tone while maintaining comfort. In addition, azelaic acid helps improve the appearance of redness and uneven texture. As a result, the complexion looks smoother and more balanced over time. Furthermore, the lightweight formula absorbs quickly and layers well with other products.
Key Ingredients That Clarify & Soothe the Skin
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Azelaic Acid (10%) – helps improve uneven tone and refine skin texture.
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Niacinamide – supports brighter-looking and balanced skin.
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Hydrating agents – maintain moisture balance and reduce dryness.
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Skin-conditioning ingredients – improve comfort during active care.
Main Effects of the Azelaic Acid 10% Serum
This serum helps refine texture and support clearer-looking skin. Moreover, it improves the appearance of uneven tone and redness. It helps maintain balanced hydration during treatment. Therefore, the serum works well as a daily clarifying step in tone-care routines.
You can expect:
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more even-looking skin tone
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smoother skin texture
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reduced appearance of redness
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lightweight, comfortable finish
Who Is This Serum For?
This product suits normal, combination, oily, and blemish-prone skin types. For example, skin with visible redness or uneven tone benefits from azelaic acid care. In addition, those seeking gentle clarification without strong peeling will appreciate the balanced formula. Because it is lightweight, it fits well into both morning and evening routines.
Cos De BAHA creates ingredient-focused Korean skincare designed for targeted skin concerns. The brand builds formulas around single active ingredients in clear concentrations. Many people choose these products because they offer strong results at an accessible price.
The philosophy centers on transparency and function. Ingredients like niacinamide, azelaic acid, retinol, and hyaluronic acid help improve tone, texture, and hydration. Moreover, the formulas aim to reduce irritation while supporting visible improvement.
In addition, the range includes serums, toners, and treatment solutions with lightweight textures. They absorb quickly and layer easily in different routines. Therefore, the products suit both beginners and advanced skincare users.
The formulas avoid unnecessary fragrance and focus on active performance. As a result, they work well for acne-prone, uneven, and dull skin types. Regular use helps improve clarity, smoothness, and overall skin balance.
At KO-CO Beauty, you can explore a curated selection of these skincare favourites with fast EU-wide delivery. Discover Korean skincare that keeps ingredients clear, routines simple, and results effective every day.
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Apply a few drops to clean skin after toner.
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Gently spread evenly across the face.
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Focus on areas with uneven tone or redness.
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Pat lightly to support absorption.
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Follow with moisturizer.
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Use sunscreen during daytime routines.
Aloe Barbadensis Leaf Extract, Propylene Glycol, Azelaic Acid (10%), Polysorbate 20, 1,2-Hexanediol, Propanediol, Panthenol, Niacinamide, Sodium Hyaluronate, Camellia Sinensis Leaf Extract, Momordica Charantia Fruit Extract, Sambucus Nigra Flower Extract, Leontopodium Alpinum Extract
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A Quick Guide to Korean Skincare
A Gentle and Research-Driven Approach
Korean skincare is known for combining gentle formulations with modern dermatological research. Instead of focusing on quick fixes, it emphasizes long-term skin balance, hydration, and overall comfort. This makes Korean products suitable for a wide variety of skin types, including sensitive or reactive skin.
The Philosophy of Layering
One of the characteristic elements of Korean skincare is the concept of layering. Lightweight products are applied in several steps to help the skin better absorb hydration and active ingredients. This method allows users to customize their routines based on their skin’s daily needs without overwhelming it.
A Wide Range of Ingredients
Korean skincare often features a diverse selection of ingredients. These may include plant extracts, fermented components, soothing botanicals, ceramides, and advanced complexes created in specialized laboratories. The goal of these formulations is usually to strengthen the skin barrier, maintain healthy moisture levels, and support overall skin comfort.
Innovations That Changed Global Skincare
Several product types that are now common worldwide originated in Korean beauty traditions. Sheet masks, essences, sleeping masks, and cleansing balms all gained popularity through K-beauty. These innovations helped transform skincare into a more thoughtful, preventive, and enjoyable routine.
Continuous Development and Improvement
Korean skincare continues to evolve with new technologies, textures, and ingredient combinations. This ongoing progress allows users to explore products that match their individual preferences and contribute to healthy-looking, well-balanced skin over time.

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