[Cosrx] The Niacinamide 15 Serum 20ml
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COSRX The Niacinamide 15 Serum – Target Blemishes, Control Sebum & Brighten Skin ✨
Say goodbye to stubborn breakouts and uneven skin tone with the COSRX The Niacinamide 15 Serum, a power-packed treatment serum formulated with 15% Niacinamide (Vitamin B3) to visibly reduce blemishes, regulate oil production, and refine pores. Blended with Zinc PCA, Allantoin, and N-Acetylglucosamine, this serum offers a comprehensive solution to acne-prone and oily skin, while also improving skin texture and clarity over time.
This potent yet non-irritating formula is ideal for those looking to tackle persistent blemishes, excess sebum, and post-acne marks without drying or stripping the skin.
✅ Key Benefits:
✔ High-Strength Niacinamide (15%) for Clarity & Glow ✨
– Fades dark spots, evens skin tone, and brightens dull, tired-looking skin.
✔ Oil Control & Pore Refinement 💧
– Zinc PCA helps balance sebum production and minimizes the look of enlarged pores.
✔ Fights Acne & Prevents New Breakouts 🌿
– Works effectively to reduce inflammation, calm active breakouts, and prevent clogged pores.
✔ Supports Skin Barrier & Hydration 💦
– Allantoin and N-Acetylglucosamine soothe irritation, promote cell turnover, and enhance overall skin health.
✔ Lightweight, Fast-Absorbing Texture
– No greasy or sticky residue—perfect for layering in both AM and PM routines.
🌿 How to Use:
1️⃣ After cleansing and toning, apply 2–3 drops to your entire face or focus on troubled areas.
2️⃣ Gently pat into skin for full absorption.
3️⃣ Follow with moisturizer and SPF in the morning.
4️⃣ Use once daily (preferably at night if you have sensitive skin) and gradually increase to twice daily if tolerated.
🔹 Pro Tip: Don’t mix with Vitamin C or strong exfoliants in the same routine—alternate use for maximum skin benefits!
🎯 Perfect For:
✔ Oily & Acne-Prone Skin
✔ Blemishes & Dark Spots
✔ Large Pores & Excess Sebum
✔ Dull or Uneven Skin Tone
💖 Unlock the Secret to Clearer, Balanced Skin!
Add COSRX The Niacinamide 15 Serum to your K-Beauty routine and take control of breakouts, oiliness, and discoloration—for skin that’s clear, radiant, and confident.
At Official K-Beauty (OKB), our secret is simple—bringing you only 100% authentic Korean beauty secrets straight from Korea. We stand firmly against counterfeit products because in beauty and skincare, fake products can be a dangerous secret. That’s why we source directly from trusted brands and import everything from Korea, ensuring genuine, safe, and effective beauty solutions. With OKB, you never have to worry about authenticity—it’s the secret behind our name!
Estimate delivery times: 5-10 days
Return within 2 days of purchase.









