Cos De BAHA AZ Azelaic Acid 10 Serum 30ml 是韓國小眾護膚品牌 Cos De BAHA 推出的高濃度精華，含 10% 壬二酸（Azelaic Acid），配合煙酰胺（Niacinamide）及泛醇（Panthenol）等溫和成分，針對暗沉、膚色不均及偶發瑕疵的肌膚狀況。

壬二酸是深受皮膚科界認識的護膚成分，性質相對溫和。建議於爽膚水後取適量塗於面部，初期可隔日使用，待肌膚適應後再增加至每日使用；日間請配合防曬產品。

產品亮點：

• 韓國品牌 Cos De BAHA 高濃度精華
• 10% 壬二酸，配煙酰胺及泛醇
• 針對暗沉、膚色不均及瑕疵問題
• 30ml 裝，成分簡潔，適合成分黨

資料提示：成分及濃度資料取材自品牌官方及授權零售商頁面；個別肌膚反應因人而異，首次使用建議先於局部測試。

Cos De BAHA AZ Azelaic Acid 10 Serum 30ml is a high-strength serum from Korean indie skincare brand Cos De BAHA, featuring 10% azelaic acid alongside niacinamide and panthenol. It targets dullness, uneven tone and the appearance of occasional blemishes.

Azelaic acid is a well-recognised skincare ingredient known for its gentle profile. Apply after toner; start on alternate days and increase to daily use once skin adjusts. Always follow with sunscreen in the morning.

Product highlights:

• High-strength serum from Korean brand Cos De BAHA
• 10% azelaic acid with niacinamide and panthenol
• Addresses dullness, uneven tone and blemishes
• 30ml size with a clean, ingredient-focused formula

Source note: Ingredient and concentration details are based on the brand's official and authorised retailer pages. Individual reactions vary; patch test before first use.