Niacinamide 15 Serum Reviewed — Benefits, Ingredients & How To Use

For those who deal with excess oil, enlarged pores, acne marks, uneven skin tone, and rough texture, COSRX The Niacinamide 15 Serum may be an interesting product to include in your skincare regimen. A unique concentrated serum with 15% niacinamide paired with Acetyl Glucosamine and Zinc PCA targets multiple skin concerns associated with pigmentation, listeria, enlarged pores and barrier properties.

Niacinamide is one of the most talked about skincare ingredient that can help reduce excess oil, pores, uneven tone and post-acne marks. But, given that this serum is somewhat on the higher side of niacinamide content (as discussed above), knowing how to use it appropriately is key.

In this COSRX The Niacinamide 15 Serum review, we will be covering the benefits and usage guide along with its ingredients, skin type compatibility, pros & cons of the serum and whether you should try it out or not.

What is COSRX The Niacinamide 15 Serum

COSRX The Niacinamide 15 Serum is primarily intended for oily, combination, blemish-prone and congested skin types.

This has 15% niacinamide as the backbone ingredient and is backed by Acetyl Glucosamine, Zinc PCA, and Allantoin. Target oil control, visible pores, uneven tone, blemishes and post-acne marks with the formula.

Its lightweight texture makes it versatile enough to blend into simple or multi-step skincare routines.

Key Ingredients

15% Niacinamide

The star ingredient is niacinamide, aka vitamin B3. It is mostly used to reduce excess oils, as well as to minimize the appearance of enlarged pores, uneven skin tone and post-acne marks.

This is a high potency niacinamide serum with 15% concentration This is a great option if you are a skincare veteran, but as it can be harsh, those just starting out with higher concentrations should do so slowly.

Acetyl Glucosamine

It pairs well with niacinamide and is added to promote a more even appearance in skin tone, which brings us to the next ingredient. This can be useful for individuals worried about the appearance of post-acne scarring and uneven skin tone.

Zinc PCA

Zinc PCA — This is another one that is especially beneficial for oily and combination skin. Although this serum contains niacinamide, it also helps to combat excess sebum, which makes it a good choice for those with skin that quickly becomes shiny or looks congested.

Allantoin

Allantoin is included largely because of its soothing properties, providing a bit of balance in a formula high in niacinamide.

Benefits of COSRX The Niacinamide 15 Serum

Helps Control Excess Oil

This is a great serum with its main ingredient being excess sebum. Niacinamide and Zinc PCA is one reason why this formulation works particularly well for oily and combination skin.

When made use of regularly, the skin might look more well balanced and much less excessively shiny.

Improves the Appearance of Pores

Pores cannot be closed for good, but excess oil can help them look less noticeable by improving the appearance of skin texture.

This is targeted formula specifically aimed at visible pores and sebum.

Helps With Post-Acne Marks

Niacinamide & Acetyl GlucosamineIf breakouts have resulted in dark-ish looking patches, then this is the perfect combo to include in your brightening regime.

The skin can become more even and refined with regular use.

Supports Smoother-Looking Skin

Oily, bumpy skin does not look nice. Oil-control and texture-focused serums can be helpful in promoting an overall more streamlined appearance of the skin over time.

Lightweight Texture

If you tend not to use heavy or greasy skincare products, then the lightweight presence make this serum comfortable for your skin. It is especially attractive for oily skin and humid climates.

Who Should Use It?

COSRX The Niacinamide 15 Serum might be the most favourite for:

Oily skin

Combination skin

Acne-prone skin

Visible pores

Excess sebum

Uneven skin tone

Post-acne marks

Congested-looking skin

Uneven texture

If you have sensitive or extremely dry skin, you may wish to start off with a lower-strength niacinamide product and work your way up.

Going to respond to the question – Is It Good for Sensitive skin?

For some people with sensitive-skin it may be okay, but I would use caution. 15% niacinamide is a high dose and there maybe some who find redness, irritation or discomfort.

For those with sensitive skin, begin using every two or three days. We want to remind you that patch test it before you put in your whole face, and increase the frequency only if your skin tolerates well.

Usage of COSRX The Niacinamide 15 Serum

A Working Routine Could Go Like This:

Cleanse your face.

If desired apply toner or essence.

Use a couple of drops of the serum

Gently pat it into your skin.

Follow with moisturizer.

Apply sunscreen during the daytime.

You don’t NEED a ton. Generally a few drops are enough for the face

Can you use it with other actives?

Since this is essentially a high-potency serum, don’t go making your routine way too complex. If you are using any retinol products, exfoliating acids, or high dose vitamin C already, be much more cautious and integrate those rather than layering a whole consciousness of actives together.

A basic routine with a gentle cleanser, serum, moisturizer and sunscreen is usually all you need.

Pros and Cons

Pros

Contains 15% niacinamide

Helps target excess oil

Supports the appearance of pores

Helps improve uneven-looking skin tone

Contains Zinc PCA

Contains Acetyl Glucosamine

Lightweight texture

For oily and combination skin types

Cons

For some early level pilots it may be too powerful

First, Depending on the skin typeSince exfoliators have a strong effect, sensitive skin should be used over time.

Too many active ingredients can cause irritation.

Does not work on deeper acne scarring

Final Verdict

In summary, COSRX The Niacinamide 15 Serum is a focused treatment for those with oily skin, enlarged pores, uneven skin tone and post-acne spots.

Although loaded with 15% niacinamide, Acetyl Glucosamine and Zinc PCA, it is more oil control / pore care than a standard hydrating serum.

While it can be helpful in a skin care regimen for oily and combination skin, you essentially have to use it purposefully. That said, because of the amount of niacinamide, beginners and those with sensitive skin should proceed with caution.

If you primarily have the woes of oily skin paired with enlarged pores, blemish scars and an uneven skin tone, stake a claim on this serum from COSRX.

Frequently Asked Questions

COSRX The Niacinamide 15 Serum – Is It Good For Acne-Prone Skin?

Yes. Designed with oil-control and pore-focused ingredients, its results make it a decent choice for oily and acne-prone skin.

Can I use it every day?

You can aim for daily use gradually as your skin tolerates it. If you are a beginner your strating point should be few times per week.

Does it shrink pores?

It won’t permanently change the size of your pores, but it can help lessen their appearance by addressing oiliness and texture.

Can it remove acne scars?

This can improve dark post-acne marks, but this is not a treatment for deep or indented acne scars.

Is it good for oily skin?

Yes. This serum, formulated to improve oil production and unclog pores, will be most helpful for oily and combination skin types.