The Niacinamide 15 Serum
$62.00
COSRX The Niacinamide 15 Serum is a concentrated 20ml treatment developed for oily, congested and blemish-prone complexions.
Its lightweight formula helps balance excess sebum while improving the appearance of visible pores, uneven texture, dark spots and post-blemish marks.
COSRX Niacinamide 15 Serum – The Niacinamide 15 Serum 20ml
The COSRX Niacinamide 15 Serum is a concentrated treatment created for oily, congested and blemish-prone complexions. Formulated with 15% niacinamide, acetyl glucosamine, zinc and allantoin, it helps balance excess sebum while improving the appearance of pores, uneven texture and post-blemish marks.
COSRX Niacinamide 15 Serum for Oily Skin
This concentrated niacinamide treatment provides targeted care without leaving an excessively heavy finish. Its lightweight texture absorbs comfortably and can be incorporated into routines focused on shine, visible pores, uneven tone and recurring blemishes.
COSRX Niacinamide 15 Serum Benefits
- Contains a concentrated 15% niacinamide formula
- Helps balance the appearance of excess sebum
- Supports clearer and more refined-looking pores
- Helps improve uneven-looking skin texture
- Refines the appearance of post-blemish marks
- Supports a brighter and more even-looking complexion
- Contains acetyl glucosamine for texture and tone support
- Includes zinc to complement oil-balancing care
- Features allantoin to help maintain skin comfort
- Lightweight texture layers easily with other products
- Suitable for oily and blemish-prone skin
- Authentic COSRX skincare made in Korea
15% Niacinamide for Visible Pores and Shine
The 15% niacinamide serum helps regulate the appearance of excess oil while supporting the skin’s moisture barrier. Consistent use can help the complexion look smoother, more balanced and less congested without relying on harsh physical exfoliation.
Oil-Control Serum with Zinc and Allantoin
Acetyl glucosamine complements niacinamide by supporting a more even-looking tone and refined texture. Zinc adds further sebum-balancing support, while allantoin helps soothe and maintain comfort within this high-strength pore-refining serum.
Application Directions
Apply the blemish-care serum after cleansing and toning. A small amount is sufficient because the formula contains a high concentration of niacinamide.
- Cleanse and tone the complexion before application.
- Dispense two or three drops onto clean fingertips.
- Spread the serum gently across the face.
- Concentrate on oily areas, visible pores or uneven-looking tone.
- Pat lightly until the formula has been absorbed.
- Follow with moisturiser to support skin comfort.
- Apply sunscreen as the final step of a morning routine.
Introduce the Concentrated Formula Gradually
Begin using the concentrated niacinamide treatment two or three times per week before increasing application according to skin tolerance. If dryness or sensitivity develops, reduce the frequency and avoid combining several high-strength active products in the same routine.
Complete Your Daily Routine
Prepare the skin with the COSRX Salicylic Acid Daily Gentle Cleanser, introducing both products gradually if your skin is sensitive. Browse the complete COSRX skincare collection for compatible toners and moisturisers.
The COSRX Niacinamide 15 Serum is intended for external use only. Patch testing is recommended before first use. Discontinue use if persistent irritation occurs and store the bottle away from direct sunlight.
