COSRX The Niacinamide 15 Serum 20ml

Description

COSRX The Niacinamide 15 Serum is a high-strength niacinamide serum from COSRX. It combines 15% niacinamide with zinc PCA and N-acetyl glucosamine. Below you will find what the brand says about it, the ingredient list as published by the brand, and how to use it.

COSRX The Niacinamide 15 Serum: Key Facts

Brand	COSRX
Product type	Serum
Size	20ml
Key ingredients	Niacinamide (15%), Zinc PCA, N-acetyl glucosamine
When to use	Morning and night, after toner

What COSRX Says It Does

These points are how COSRX describes the product. They are not the result of our own testing.

• Targets excess oil and visible pores
• Works on the look of blemish marks and uneven tone
• High 15% concentration

Key Ingredients in COSRX The Niacinamide 15 Serum

• Niacinamide (15%) — a form of vitamin B3.
• Zinc PCA — often paired with niacinamide for oily skin.
• N-acetyl glucosamine — used alongside niacinamide for tone.

Full Ingredient List

This is the ingredient list published by COSRX on its official page. Formulas can change, so always check the list printed on your pack.

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.

How to Use COSRX The Niacinamide 15 Serum

1. After cleansing and toning, apply a few drops to the face.
2. Pat in gently until absorbed.
3. Follow with moisturiser, and wear sunscreen in the daytime.

Who It Suits

Oily, combination and blemish-prone skin. If you are new to niacinamide, a lower strength is a gentler start.

Good to Know Before You Buy

• 15% niacinamide is a high strength. Flushing or tingling can happen, so start every other day.
• Patch test on the inner arm or behind the ear for 24 hours before first use.
• Stop using it if you get stinging, redness or itching that does not settle.
• Store in a cool, dry place away from direct sunlight.

What We Will Not Claim

• We will not claim it cures acne, eczema or any other skin condition. It is a cosmetic, not a medicine.
• We will not promise results in a fixed number of days. Skin responds differently for everyone.
• We will not claim it suits every skin type without a patch test.

Buy COSRX The Niacinamide 15 Serum in Bangladesh

Every product we sell at Lume & Layer is authentic. We carefully select our stock from trusted suppliers and established distribution channels, and we review packaging, labelling and condition before dispatch. Read how we source on our Authenticity & Sourcing page.

Browse more in our Serums collection.

FAQ

Is this COSRX The Niacinamide 15 Serum authentic?

Yes. Every product we sell is authentic. We carefully select our stock from trusted suppliers and established distribution channels, and we review packaging, labelling and condition before dispatch.

Where does it go in my routine?

After toner and before moisturiser. In the morning, finish with sunscreen.

What size is this listing?

This listing is for the 20ml pack.

Source: product information and ingredient list as published by COSRX on its official product page.