Cos De BAHA Azelaic Acid 10% Serum 30 ml — Niacinamide & Panthenol, Lightweight Aloe-Based

Cos De BAHA Premium Azelaic Acid 10% Serum is a lightweight, aloe-based 30 ml treatment formulated to help reduce the visible signs of blemishes, redness, and uneven tone while supporting smoother, less oily-looking skin.

This serum pairs a high-strength 10% azelaic acid concentration with supportive ingredients like niacinamide, panthenol, and hyaluronic acid to offer targeted skin-tone refinement without heavy silicones or oils. The formulation is rooted in a soothing Aloe Barbadensis leaf extract base and includes botanical extracts for an added calming and antioxidant complement. It’s designed to absorb quickly so you can layer a moisturizer and sunscreen on top for morning or evening use.

How will this serum help reduce visible redness and blemishes?

The 10% azelaic acid targets uneven pigmentation and helps improve the overall appearance of redness-prone and blemish-prone skin with consistent use. Niacinamide supports a more uniform tone while panthenol adds a conditioning element to help skin feel less irritated. The combined actives are balanced to avoid an overly harsh feel while remaining effective.

• 10% azelaic acid to address discoloration and surface texture
• Niacinamide to minimize the look of post-blemish marks
• Panthenol and aloe to soothe and comfort
• Lightweight delivery to layer under sunscreen or moisturizer

Will this serum make my oily or pore-prone skin feel greasy?

No — the serum is formulated to be lightweight and fast-absorbing, avoiding heavy emollients that can weigh skin down. Humectants like propanediol and sodium hyaluronate provide hydration without a greasy residue, while azelaic acid and niacinamide help refine the visual appearance of excess oil and pores over time.

• Aloe-based, non-greasy texture for quick absorption
• Humectants for hydration without oiliness
• Ingredients chosen to support the look of pores and oil control

How should I incorporate Cos De BAHA Azelaic Acid 10% Serum into my routine?

Apply a few drops to clean, dry skin once or twice daily, then follow with a moisturizer and SPF in the morning. Start with every other day if your skin is sensitive, gradually increasing frequency as tolerated. Avoid mixing with strong exfoliating acids or retinoids at the same time to reduce irritation risk.

• Use on clean skin AM or PM, or every other day initially
• Layer moisturizer and sunscreen after application in the morning
• Space actives (AHAs/BHAs/retinoids) to prevent over-exfoliation

What else is in the formula and why does it matter?

Beyond azelaic acid, the serum includes soothing and balancing components like aloe extract, panthenol, and a selection of botanical extracts such as green tea and elderflower. These ingredients provide antioxidant support and calming benefits, while propylene glycol and propanediol help the actives distribute evenly and feel comfortable on skin.

• Aloe Barbadensis leaf extract base for a cooling feel
• Green tea and elderflower for antioxidant support
• Sodium hyaluronate and humectants for lightweight hydration

Who is this for: This Cos De BAHA serum is aimed at people with blemish-prone, redness-prone, or oily skin who want a targeted, non-greasy treatment to improve uneven tone and texture. It’s suitable for those who prefer a K-beauty–inspired, fast-absorbing serum that layers well in multi-step routines. If you have very sensitive or reactive skin, patch testing and gradual introduction are recommended.

Ingredients

*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.