• COSRX - The Niacinamide 15 Serum (20ML) - AU Beauty Bazaar
  • COSRX - The Niacinamide 15 Serum (20ML) - AU Beauty Bazaar
  • COSRX - The Niacinamide 15 Serum (20ML) - AU Beauty Bazaar
  • COSRX - The Niacinamide 15 Serum (20ML) - AU Beauty Bazaar
  • COSRX - The Niacinamide 15 Serum (20ML) - AU Beauty Bazaar
BEST SELLER
COSRX

COSRX - The Niacinamide 15 Serum (20ML)

$28.00 AUD
$28.00 AUD
Sale Sold out
Targets Skin Concerns
Concentrated care for a healthier-looking complexion.
Lightweight Texture
Absorbs easily without feeling heavy.
Hydrates & Smooths
Helps skin feel softer, fresher and more balanced.
Easy Daily Routine Step
Perfect before moisturizer, morning or night.

Free standard shipping on orders $60+ · Express $15.99 (or $8 on orders $60+)

  • 100% Genuine
    Sourced from Korea.
    Sourced from Korea.
  • Sydney dispatch
    Orders processed in 1–2 business days.
    Orders processed in 1–2 business days.
  • Rewards program
    Earn points on every order.
    Earn points on every order.
  • 90 day easy returns
    Hassle-free returns for peace of mind.
    Hassle-free returns for peace of mind.

COSRX The Niacinamide 15 Serum is a high-strength treatment serum with 15% niacinamide that targets acne, hyperpigmentation, and excess oil for smoother, brighter skin.

🌟 Key Benefits

  • Minimizes pores and controls sebum.

  • Fades dark spots and post-acne marks.

  • Improves skin texture and tone.

✨ Star Ingredients

  • Niacinamide (15%) – brightens and strengthens barrier.

  • Zinc PCA – controls oil and calms skin.

  • N-Acetylglucosamine (NAG) – gentle exfoliation for clarity.

💧 Skin Type
Suitable for oily, acne-prone, and dull skin.

Smooth over cleansed, damp skin.

KEY ACTIVES

FULL INGREDIENTS LIST
Water, Pentylene Glycol, Niacinamide(15%), Butylene Glycol, Acetyl Glucosamine, 1,2-Hexanediol, Zinc PCA, Trehalose, Xanthan Gum, Pullulan, Allantoin, Ethylhexylglycerin, Sodium Phytate, Citric Acid, Tocopherol

Product info can change. Always check the packaging for the latest ingredients, warnings, and directions before use.

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Questions

Is this authentic?

Yes. Every product is sourced as an official stockist and ships sealed from our Sydney warehouse, with verifiable batch codes.

How fast is shipping?

Orders are processed within 1–2 business days (excluding weekends and public holidays) and ship from Sydney. Standard shipping is free on orders $60+ ($10.50 under $60). Express is $15.99, or $8 on orders $60+.

How do I use this?

Follow the directions in the product description and on the pack. If your skin is sensitive, patch test on a small area first and stop using it if irritation occurs.

How often should I use these?

Morning and night for most skin. If your skin is sensitive, start once a day and build up.