COSRX, The Niacinamide 15 Serum

The Niacinamide 15 Serum

Name: The Niacinamide 15 Serum
Brand: COSRX
Price: 20 EUR
Availability: InStock

Step 4: Serum

from €20

High strength niacinamide for pores and oil control.

Skin types: Oily, Combination, Acne

Targets: Pores, Sebum, Blemishes

Pros

visibly minimizes pores
quick absorbing

Cons

can pill under heavy SPF

Where to buy

Shop via partner

Editorial verdict

The COSRX The Niacinamide 15 Serum is a targeted treatment formulated with a potent 15% niacinamide concentration, designed to address common concerns for oily, combination, and acne-prone skin types. Its primary benefits include regulating sebum production, minimizing the appearance of enlarged pores, and contributing to a more even and refined skin tone. The inclusion of zinc PCA further supports oil control, while ingredients like allantoin and sodium hyaluronate ensure the skin remains hydrated and soothed. This serum is an excellent choice for individuals seeking a powerful ingredient-focused product to manage oiliness and pore concerns, offering a lightweight and fragrance-free option for effective daily use.

Oily skin

Combination skin

Normal skin

Sensitive skin

Acne

Oiliness

Enlarged Pores

Uneven Skin Tone

Redness

What people love and don't

This serum features a high concentration of 15% niacinamide, designed to target concerns like excessive sebum production, enlarged pores, and uneven skin tone, while also soothing the skin. The formula includes zinc PCA to further assist with oil control and acetyl glucosamine for skin brightening.

The good

Targets sebum and pores

The 15% niacinamide concentration is known to help regulate sebum production and reduce the appearance of enlarged pores, supported by zinc PCA which further aids in controlling oil.

Improves skin tone and texture

Niacinamide at this strength can contribute to a more even skin tone and refined skin texture, while acetyl glucosamine assists in brightening the complexion.

Soothes and hydrates

Ingredients like allantoin, sodium hyaluronate, and trehalose are included to provide hydration and help soothe the skin, counteracting potential dryness from the high niacinamide.

Lightweight and fast-absorbing

The serum's formulation is designed to be lightweight, allowing for quick absorption into the skin without leaving a heavy residue.

Reach for it if

Individuals with oily, combination, or acne-prone skin looking to manage sebum, minimize the appearance of pores, and improve skin clarity.

Skip it if

Those with extremely dry or sensitive skin should introduce this high concentration niacinamide serum gradually or perform a patch test.

What to expect

Reduced sebum production
Minimization of enlarged pores
More even skin tone
Improved skin texture
Soothing of minor redness

Don't expect

Immediate dramatic change in deep wrinkles
Cure for severe acne without other treatments
Standalone solution for hyperpigmentation from deep scars

Deep facts

Texture: Lightweight, watery serum
Finish: Natural to slightly matte
Scent: Unscented
Packaging: Clear glass bottle with a dropper
Value: Given its high concentration of a well-researched active ingredient, this serum offers good value for those seeking targeted solutions for oil control and pore concerns, aligning with COSRX's reputation for effective formulations.
Time to results: Oil control and pore appearance improvements may be observed within a few weeks, while tone and texture benefits might take longer, typically 4 to 8 weeks.
Usage frequency: Once or twice daily, starting slowly if new to high niacinamide.
Routine position: After toner, before moisturizer

Fragrance freeEssential oil freeAlcohol free

Layering tips

Can be layered with hydrating toners or essences. Avoid layering with vitamin C derivatives that may cause irritation when combined with high niacinamide.

Full INCI list

This ingredient list was auto-compiled and may be incomplete or outdated. For allergens, pregnancy or sensitivity checks, verify on the brand's official page.

Aqua, Pentylene Glycol, Niacinamide, Butylene Glycol, Acetyl Glucosamine, 1,2-Hexanediol, Zinc PCA, Trehalose, Hydrolyzed Sclerotium Gum, Sodium Hyaluronate, Allantoin, Ethylhexylglycerin, Tocopherol

How to use

Use morning or night after toner.

Questions people ask about The Niacinamide 15 Serum

Answered from our enrichment data, not generic boilerplate.

What is The Niacinamide 15 Serum and what does it do?

Is The Niacinamide 15 Serum good for oily, combination, normal and sensitive skin?

Yes, it tends to suit oily, combination, normal and sensitive skin. Individuals with oily, combination, or acne-prone skin looking to manage sebum, minimize the appearance of pores, and improve skin clarity.

Who should avoid The Niacinamide 15 Serum?

Those with extremely dry or sensitive skin should introduce this high concentration niacinamide serum gradually or perform a patch test.

How often should I use The Niacinamide 15 Serum?

Once or twice daily, starting slowly if new to high niacinamide.

How long until The Niacinamide 15 Serum shows results?

Oil control and pore appearance improvements may be observed within a few weeks, while tone and texture benefits might take longer, typically 4 to 8 weeks.

What can I layer The Niacinamide 15 Serum with?

Can be layered with hydrating toners or essences. Avoid layering with vitamin C derivatives that may cause irritation when combined with high niacinamide.

Is The Niacinamide 15 Serum worth the price?

Given its high concentration of a well-researched active ingredient, this serum offers good value for those seeking targeted solutions for oil control and pore concerns, aligning with COSRX's reputation for effective formulations.

Is The Niacinamide 15 Serum suitable for sensitive skin?

The Niacinamide 15 Serum is fragrance-free, free of essential oils and alcohol-free, which makes it a safer pick for reactive or barrier-impaired skin. Always patch test before using it on the full face.