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COSRX

COSRX The Niacinamide 15% Serum | 15% Niacinamide + 2% Acetyl Glucosamine + Zinc PCA for Brightening & Pore Refinement

COSRX The Niacinamide 15% Serum | 15% Niacinamide + 2% Acetyl Glucosamine + Zinc PCA for Brightening & Pore Refinement

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Precio habitual $19.99 USD
Precio habitual $29.99 USD Precio de oferta $19.99 USD
Impuestos incluidos. Los gastos de envío se calculan en la pantalla de pago.
Cantidad
  • 100% Authentic
  • 30 Days Return
  • Fast USA Shipping

Quick Description:

✨ 100% Authentic – Made in Korea
📅 Best By: ~12/2026
🔖 UPC: 8809598454637 
✅ Return accepted within 30 days
📦 Ships Fast from the USA


Product Summary:

This potent serum features 15% niacinamide, 2% N‑acetyl glucosamine, and 1% zinc PCA to regulate sebum, fade hyperpigmentation, minimize pore appearance, and soothe inflammation. With added allantoin and tocopherol, its lightweight formula hydrates while refining texture and brightening tone—ideal for oily, acne-prone, combination, or textured skin. Recognized in skin editorials and consumer reviews for delivering visible results in as little as one week.

Ingredients

The COSRX Niacinamide 15 Serum is powered by a skin-friendly blend designed to clarify and balance:

Water, Pentylene Glycol, Niacinamide, Butylene Glycol, Acetyl Glucosamine, 1,2-Hexanediol, Zinc PCA, Trehalose, Allantoin, Tocopherol, Sodium Phytate, Citric Acid

Please note that ingredient lists may change or vary over time. For the most accurate and up-to-date information, refer to the product packaging or the manufacturer's official website.

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  • Why You'll Love It

    🌿 15% Niacinamide brightens dull skin and fades post-acne marks
    ✨ Zinc PCA helps reduce oil and calms active breakouts
    💧 Acetyl Glucosamine boosts glow and improves skin texture
    🥛 Lightweight and non-sticky formula perfect for layering
    🧴 Great for enlarged pores, uneven tone, or rough texture
    🪞 Works well under makeup and SPF with no pilling

  • Features & Benefits

    ✔️ 15% brightening-grade niacinamide for spot correction
    ✔️ Refines large pores and controls sebum production
    ✔️ Supports acne healing and skin barrier health
    ✔️ Promotes smoother, brighter, more even skin
    ✔️ Fragrance-free, alcohol-free, and silicone-free
    ✔️ Suitable for oily, sensitive, and acne-prone skin types

  • How To Use

    ① After toner, apply 2–3 drops to the entire face
    ② Pat gently for better absorption
    ③ Use daily, morning or night
    ④ Follow with moisturizer
    ⑤ Apply SPF during the day

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Product FAQ

Can this be used with other active ingredients like retinol or vitamin C?

Yes, but for beginners, it’s recommended to alternate use (AM/PM) to avoid irritation. Always patch test first.

Is it too strong for sensitive skin?

Although it’s potent, the formula is designed to minimize irritation. Start with every other day if your skin is reactive.

How long until I see results?

Many users report clearer, smoother, more balanced skin in as little as 2–3 weeks of consistent daily use.

Customer Reviews

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