COSRX The Niacinamide 15 Serum (20ml)

COSRX The Niacinamide 15 Serum is a high-concentration serum formulated with 15% Niacinamide, Acetyl Glucosamine (NAG), Zinc PCA, and Allantoin to target excess sebum, enlarged-looking pores, rough texture, blemishes, and uneven skin tone.

Its lightweight, fast-absorbing texture is especially suitable for oily, combination, and acne-prone skin. COSRX describes it as non-comedogenic tested and suitable for addressing multiple stages of acne-related concerns.

Benefits

• Contains 15% Niacinamide for concentrated skin-conditioning care
• Helps control the appearance of excess sebum
• Helps minimize the appearance of enlarged pores
• Helps improve rough and uneven-looking skin texture
• Helps reduce the appearance of blemishes and post-acne marks
• Helps brighten the appearance of uneven skin tone
• Helps improve the appearance of hyperpigmentation
• Acetyl Glucosamine works alongside Niacinamide for tone-evening care
• Zinc PCA supports oil-control and soothing care
• Allantoin helps soothe sensitive or irritated-looking skin
• Lightweight and fast-absorbing
• Non-comedogenic tested according to COSRX
• Suitable for oily, combination, and acne-prone skin

Texture & Feel

The serum has a light, refreshing texture that absorbs quickly without leaving a heavy or greasy residue. It layers easily with other skincare products and makeup.

Product Overview

COSRX The Niacinamide 15 Serum combines a high concentration of 15% Niacinamide with Acetyl Glucosamine (NAG) and Zinc PCA for comprehensive care of oily and blemish-prone skin.

Niacinamide helps improve the appearance of pores, excess oil, uneven tone, and post-blemish marks. Acetyl Glucosamine complements Niacinamide in addressing the appearance of hyperpigmentation, while Zinc PCA provides oil-balancing and skin-conditioning benefits.

The formula also contains Allantoin, Trehalose, and Tocopherol to provide soothing, moisturizing, and antioxidant support.

How to Use

1. Cleanse your face and complete your toner step.
2. Apply a few drops of serum to the face.
3. Gently spread from the center of the face outward.
4. Pat lightly until absorbed.
5. Follow with moisturizer.
6. During daytime use, finish with a broad-spectrum sunscreen of SPF 30 or higher.

The serum can be used in the morning and/or evening.

How Not to Use

• Do not apply to broken or severely irritated skin.
• Avoid direct contact with the eyes.
• Do not use excessive amounts simply because the serum contains a high concentration of Niacinamide.
• If your skin is new to high-strength Niacinamide, introduce it gradually.
• Avoid combining multiple potentially irritating active treatments at once if your skin is sensitive.
• Stop use if persistent redness, burning, or irritation occurs.

Who Can Use

Suitable for:

• Oily skin
• Combination skin
• Acne-prone skin
• Skin with excess sebum
• Skin with enlarged-looking pores
• Rough or uneven skin texture
• Dull-looking skin
• Uneven skin tone
• Post-acne marks and visible blemishes

COSRX states that the serum can be used by all skin types, while particularly recommending it for oily and acne-prone skin.

Ingredients

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.

Country of Origin

South Korea.

Authenticity

Empress Origin provides authentic imported skincare products. COSRX The Niacinamide 15 Serum is supplied as an original COSRX product in its branded packaging.

FAQ

Q. What is COSRX The Niacinamide 15 Serum used for?
It is designed to target excess sebum, enlarged-looking pores, rough texture, blemishes, post-acne marks, and uneven skin tone.

Q. Is 15% Niacinamide suitable for beginners?
15% is a relatively high concentration. Beginners or people with sensitive skin may prefer introducing it gradually rather than starting with daily use.

Q. Is it suitable for oily skin?
Yes. COSRX specifically recommends the serum for oily and acne-prone skin, particularly for concerns related to excess sebum and enlarged-looking pores.

Q. Can I use it on acne-prone skin?
Yes. It is formulated specifically around acne-related concerns and is non-comedogenic tested according to COSRX. However, it is a cosmetic serum rather than a prescription acne treatment.

Q. Can I use it for large pores?
It can help improve the appearance of enlarged pores by addressing excess sebum and uneven skin texture. It does not permanently change the physical size of pores.

Q. Can I use it for dark spots and post-acne marks?
Yes. Niacinamide and Acetyl Glucosamine are included to help improve the appearance of uneven pigmentation and post-acne marks.

Q. Can I use it with Salicylic Acid?
Yes. COSRX states that Niacinamide can be used with BHA and that the combination can be useful for concerns involving pores and excess sebum. If your skin is sensitive, introduce the combination gradually.

Q. Can I use it with Vitamin C?
COSRX recommends using this high-concentration Niacinamide serum and high-concentration Vitamin C separately because combining highly concentrated formulas may increase the possibility of irritation.

Q. Can I use it every day?
Yes, if your skin tolerates it. COSRX states that it can be used morning and/or afternoon.

Q. Does it contain fragrance?
No added fragrance is listed in the current official ingredient list.

Pregnancy Safety FAQ

Q. Can COSRX The Niacinamide 15 Serum be used during pregnancy?
The current formula does not contain retinoids, hydroquinone, or Alpha-Arbutin and is generally considered suitable for use during pregnancy. However, 15% Niacinamide is a high concentration, so pregnant users with sensitive skin should introduce it carefully and consult their healthcare professional if they have specific concerns.

Important Note

For external use only. Because this serum contains a high 15% concentration of Niacinamide, sensitive skin may experience irritation if introduced too quickly. Patch testing is recommended before regular use. Individual results may vary. Always check the ingredient list printed on the product packaging received, as cosmetic formulas may be updated by the manufacturer.