Cos De BAHA Azelaic Acid 10 Serum (AZ) 30ml30ml

Key Ingredients

• Azelaic Acid (10%) -- the headline active, confirmed present at a 10% concentration; commonly used to help with acne-prone and redness-prone skin and to even skin tone
• Niacinamide -- confirmed present, supports the brightening and skin-barrier benefits
• Panthenol (Pro-Vitamin B5) -- confirmed present, supports hydration and soothing
• Sodium Hyaluronate -- confirmed present, a hydrating humectant
• Aloe Barbadensis Leaf Extract, Camellia Sinensis (Green Tea) Leaf Extract, Momordica Charantia (Bitter Melon) Fruit Extract, Sambucus Nigra (Elderflower) Flower Extract, Leontopodium Alpinum (Edelweiss) Extract -- confirmed present as supporting soothing/antioxidant extracts in the current "Renewed" formula

Key Features

• A 10% Azelaic Acid serum from Cos De BAHA, a Korean skincare brand, formulated with Niacinamide and Panthenol
• Alcohol-free and fragrance/essential-oil-free, per the brand's own product description
• The ingredient list above reflects the brand's current "Renewed" formula (which swapped earlier witch hazel/eucalyptus extracts for green tea, bitter melon, elderflower, and edelweiss extracts); the core active ingredients (Azelaic Acid, Niacinamide, Panthenol, Sodium Hyaluronate) are unchanged between formula versions

Benefits

• Azelaic Acid at 10% is commonly used to help with acne-prone, blemish-prone, and redness-prone skin, and to support a more even skin tone
• Niacinamide supports skin brightening and barrier function
• Panthenol and Sodium Hyaluronate support hydration and soothing, helping offset any potential dryness from the active

Who Can Use This Product

• Those with acne-prone, blemish-prone, oily, or redness-prone/rosacea-prone skin
• Those looking to help even out skin tone or reduce the appearance of hyperpigmentation
• A patch test is advisable before full-face use, as with any leave-on active-acid serum
• Pregnant or breastfeeding individuals should consult a doctor before use, as a general precaution for active-ingredient skincare

How to Use

• Apply a small amount to the face after cleansing and toning
• Gently massage until fully absorbed
• Follow with moisturizer and, in the daytime, sunscreen
• Use once or twice daily, or as tolerated -- starting with once-daily use is advisable when introducing a new active

Storage & Safety

• Store in a cool, dry place away from direct sunlight
• Discontinue use and consult a doctor if irritation, redness, or a burning sensation occurs
• Keep out of reach of children
• Sourcing note: the ingredient list is cross-verified between incidecoder.com and the brand's own official blog post describing the current "Renewed" formula, so confidence in this panel is high. If MedEasy's physical stock reflects an older ("Original") formula batch, the supporting plant extracts may differ slightly, though the core active ingredients remain the same.

FAQ (Frequently Asked Questions)

Q: What is the main active ingredient in this serum?

A: Azelaic Acid at a 10% concentration, alongside supporting Niacinamide and Panthenol.

Q: What skin concerns is this serum meant for?

A: It's commonly used for acne-prone, blemish-prone, redness-prone, and uneven-tone skin.

Q: Is this serum fragrance-free?

A: Yes, per the brand's own description it is alcohol-free and free of added fragrance and essential oils.

Q: How often should I use it?

A: Once or twice daily as tolerated; it's advisable to start with once-daily use when introducing a new active ingredient.

Q: Where is this product made?

A: Cos De BAHA states its products are manufactured by a specialized skincare company in South Korea.