Niacinamide for acne-prone skin featuring QTWAYS Niacinamide, Kojic Acid & Vitamin B5 Face Serum with benefits, usage guide, and skin barrier support for clearer skin.

Niacinamide for Acne-Prone Skin: Benefits, How It Works & How to Use It Correctly

June 29, 2026

If you have acne-prone skin, you've probably come across Niacinamide in cleansers, serums, moisturisers, and even sunscreens. Over the last few years, it has become one of the most recommended skincare ingredients for managing oily, acne-prone skin and improving post-acne marks.

But what exactly does Niacinamide do?

Can it prevent breakouts?

Will it fade acne marks?

Is a 10% Niacinamide serum better than a 5% formula?

The answer is more nuanced than many skincare trends suggest.

Niacinamide, also known as Vitamin B3, is a multi-functional skincare ingredient that helps regulate excess sebum, strengthens the skin barrier, reduces visible redness, and improves post-inflammatory hyperpigmentation (PIH). While it supports healthier acne-prone skin, it is not a standalone treatment for moderate or severe acne, nor can it repair indented acne scars caused by collagen loss.

In this guide, you'll learn:

What Niacinamide is.
How it works on acne-prone skin.
Its clinically supported benefits.
Whether 10% Niacinamide is too strong.
How to use it correctly.
Which ingredients pair well with it.
How to choose the right Niacinamide serum.

Is Niacinamide Good for Acne-Prone Skin?

Yes.

Niacinamide is one of the most well-studied skincare ingredients for acne-prone skin because it targets several concerns at the same time.

It may help:

Regulate excess oil production.
Support a healthy skin barrier.
Reduce visible redness associated with acne.
Improve the appearance of post-acne marks.
Promote a smoother and more even-looking complexion.

Unlike exfoliating acids that primarily remove dead skin cells, Niacinamide works by supporting the skin's natural functions. This makes it suitable for many people with oily, combination, and acne-prone skin when used in an appropriate formulation.

What Is Niacinamide?

Niacinamide is the active form of Vitamin B3, an essential nutrient that plays an important role in maintaining healthy skin.

In topical skincare, Niacinamide is widely used because it offers multiple benefits without significantly increasing skin sensitivity to sunlight.

Dermatologists commonly recommend Niacinamide for concerns such as:

Acne-prone skin.
Excess oil production.
Enlarged-looking pores.
Uneven skin tone.
Post-inflammatory hyperpigmentation (PIH).
A weakened skin barrier.

Its versatility is one of the reasons it is included in many dermatologist-developed skincare products.

How Does Niacinamide Work?

Acne-prone skin is often affected by more than clogged pores alone.

Inflammation, excess oil production, and a weakened skin barrier can all contribute to recurring breakouts and slower skin recovery.

Niacinamide supports healthier skin by improving several of these biological processes.

Here's a simplified explanation:

Step	What Happens
1	Acne triggers inflammation.
2	The skin barrier becomes stressed.
3	Oil production may become imbalanced.
4	Redness and irritation increase.
5	Niacinamide supports the skin barrier.
6	Sebum regulation improves.
7	Skin becomes more resilient and post-acne marks gradually improve.

Rather than targeting acne-causing bacteria directly, Niacinamide creates a healthier environment that helps acne-prone skin recover more effectively.

What Does Clinical Research Say About Niacinamide?

Niacinamide is one of the most researched topical ingredients used in modern skincare.

Research suggests that topical Niacinamide may help:

Improve inflammatory acne.
Reduce excess sebum in some individuals.
Support the skin barrier.
Reduce transepidermal water loss (TEWL).
Improve post-inflammatory hyperpigmentation.
Reduce visible redness associated with acne.

Because of these multiple benefits, Niacinamide is frequently included in skincare routines recommended for oily and acne-prone skin.

It is also commonly paired with ingredients such as Salicylic Acid, Kojic Acid, Hyaluronic Acid, Ceramides, and Vitamin B5 to provide more comprehensive skincare support.

Benefits of Niacinamide for Acne-Prone Skin

When used consistently as part of a balanced skincare routine, Niacinamide may help:

1. Helps Regulate Excess Oil

Excess sebum is one of the major contributors to clogged pores and acne.

Niacinamide may help regulate oil production, making it particularly useful for people with oily or combination skin.

2. Supports the Skin Barrier

A healthy skin barrier helps protect against moisture loss and external irritants.

Barrier support becomes especially important when using acne treatments such as Salicylic Acid or Retinoids, which can sometimes cause dryness.

3. Helps Reduce Redness

Acne often leaves the surrounding skin irritated and inflamed.

Niacinamide has anti-inflammatory properties that may help reduce visible redness and improve overall skin comfort.

4. Improves Post-Acne Marks

After acne heals, many people are left with brown marks known as Post-Inflammatory Hyperpigmentation (PIH).

Niacinamide helps reduce the transfer of excess melanin to the surface of the skin, allowing these marks to gradually become less noticeable over time.

5. Promotes a More Even Complexion

By improving both redness and pigmentation, Niacinamide can help the skin appear brighter and more even-toned with regular use.

What Niacinamide Does NOT Do

Although Niacinamide is an excellent supportive ingredient, it has limitations.

It does not:

Instantly clear acne overnight.
Replace prescription acne medications when they are needed.
Exfoliate the skin like Salicylic Acid or Glycolic Acid.
Repair indented acne scars caused by collagen loss.
Deliver permanent results without consistent skincare and sun protection.

Understanding these limitations helps set realistic expectations and makes it easier to build an effective skincare routine.

Active Acne vs Acne Marks vs Acne Scars

One of the biggest misconceptions in skincare is that a single ingredient can solve every acne-related concern.

In reality, active acne, acne marks, and acne scars are three different conditions, and Niacinamide plays a different role in each.

Skin Concern	Can Niacinamide Help?	Why
Active Acne	Yes, as a supportive ingredient	Helps regulate excess sebum, reduce visible redness, and support the skin barrier.
Brown Acne Marks (PIH)	Yes	Helps reduce the transfer of excess melanin, gradually improving pigmentation.
Red Acne Marks (PIE)	May help	Its anti-inflammatory properties may reduce redness and improve overall skin appearance.
Indented Acne Scars	No	Acne scars involve collagen damage that topical Niacinamide cannot repair.

If your skin feels smooth but has brown or red marks, Niacinamide may be beneficial. If you have pitted or raised scars, professional treatments such as microneedling or laser resurfacing are generally required.

For a detailed explanation, read our guide on Acne Marks vs Acne Scars.

5% vs 10% Niacinamide: Which Is Better?

One of the most searched questions is whether a 10% Niacinamide serum is better than a 5% formulation.

The answer depends on your skin rather than the percentage alone.

5% Niacinamide	10% Niacinamide
Well studied for barrier support, oil control, and pigmentation.	Commonly used in modern serums for acne-prone skin.
Often suitable for beginners and sensitive skin.	Suitable for many users but may require gradual introduction if your skin is sensitive.
Lower likelihood of irritation.	A higher percentage does not automatically mean better results.

The quality of the formulation, supporting ingredients, and your skin's tolerance are often more important than the percentage printed on the label.

Niacinamide vs Salicylic Acid

Although these ingredients are often compared, they serve different purposes.

Niacinamide	Salicylic Acid
Supports the skin barrier	Exfoliates inside pores
Helps regulate excess oil	Helps unclog pores
Helps improve acne marks	Targets blackheads and whiteheads
Suitable for regular use in many routines	Introduce gradually to reduce the risk of irritation

For oily, acne-prone skin, these ingredients are often used together because they complement each other rather than replace one another.

Niacinamide vs Azelaic Acid

Azelaic Acid is another dermatologist-recommended ingredient for acne-prone skin.

Niacinamide	Azelaic Acid
Supports barrier function	Helps reduce acne-causing bacteria
Helps regulate oil	Helps reduce inflammation
Improves pigmentation	Improves pigmentation and redness
Suitable for many skin types	Particularly useful for acne and rosacea-prone skin

Both ingredients can play a role in a balanced skincare routine depending on your skin concerns.

Can You Use Niacinamide with Other Ingredients?

Yes.

Niacinamide is known for being compatible with many commonly used skincare ingredients.

Ingredient	Can You Use It with Niacinamide?	Why They Work Well Together
Kojic Acid	Yes	Kojic Acid helps reduce excess melanin production while Niacinamide helps reduce pigment transfer.
Hyaluronic Acid	Yes	Improves hydration and supports the skin barrier.
Vitamin B5	Yes	Helps soothe the skin and reduce dryness.
Ceramides	Yes	Strengthens the skin barrier.
Salicylic Acid	Yes	Helps unclog pores while Niacinamide supports skin recovery.
Retinoids	Yes	Niacinamide may improve skin comfort when used alongside retinoids.

This flexibility is one reason Niacinamide is frequently included in acne-focused skincare routines.

How to Use Niacinamide for Acne-Prone Skin

Consistency is far more important than applying excessive amounts of product.

Morning Routine

Cleanse with a gentle cleanser.
Apply a Niacinamide serum.
Follow with a lightweight moisturiser.
Finish with a broad-spectrum sunscreen (SPF 30 or higher).

Evening Routine

Cleanse your face.
Apply your Niacinamide serum.
Follow with a moisturiser to support the skin barrier.

If you also use Retinoids or exfoliating acids, introduce them gradually to reduce the risk of irritation.

Is Niacinamide Good for Oily Skin?

Yes.

Niacinamide is particularly popular among people with oily skin because it helps improve several concerns at once.

Potential benefits include:

Better oil balance.
Reduced shine.
Improved skin barrier.
Support for post-acne pigmentation.
Lightweight layering under sunscreen.

For these reasons, Niacinamide is commonly recommended for oily and combination skin types.

Is Niacinamide Suitable for Sensitive Skin?

Many people with sensitive skin tolerate Niacinamide well, but introducing any new skincare ingredient gradually is still important.

To minimise irritation:

Patch test before first use.
Introduce one new active ingredient at a time.
Avoid changing your entire routine at once.
Use a moisturiser if your skin feels dry or tight.

If persistent irritation develops, discontinue use and consult a dermatologist.

Common Mistakes When Using Niacinamide

Even a well-formulated serum may not deliver the desired results if it is used incorrectly.

Some of the most common mistakes include:

Using several Niacinamide-containing products without checking ingredient lists.
Expecting overnight improvement.
Frequently changing products before giving them enough time to work.
Skipping sunscreen while treating post-acne pigmentation.
Introducing multiple active ingredients at the same time.

A simple, consistent routine is usually more effective than a complicated routine with too many products.

How Long Does Niacinamide Take to Work?

Niacinamide improves the skin gradually rather than overnight. Because it supports natural skin functions such as barrier repair, oil regulation, and pigmentation management, visible results take consistent use.

The timeline depends on factors such as your skin type, the severity of acne, and whether you're treating active breakouts, acne marks, or both.

Skin Concern	Typical Timeline*
Oil control and reduced shine	2–4 weeks
Reduced redness	2–4 weeks
Mild post-acne marks	4–8 weeks
Moderate pigmentation (PIH)	2–3 months
Long-standing acne marks	3–6 months

*Results vary from person to person. Daily sunscreen and a consistent skincare routine play an important role in achieving and maintaining results.

How to Choose the Best Niacinamide Serum

Not every Niacinamide serum is formulated the same way. While the percentage often gets the most attention, the complete formulation has a much bigger impact on performance and skin comfort.

When choosing a Niacinamide serum, consider the following:

1. Look Beyond the Percentage

A higher concentration does not automatically mean better results.

Instead, look for a well-balanced formula designed for acne-prone skin.

2. Check the Supporting Ingredients

A good Niacinamide serum often includes ingredients that complement its benefits.

Look for formulations containing:

Kojic Acid
Vitamin B5 (Panthenol)
Hyaluronic Acid
Glycerin
Ceramides

These ingredients help maintain hydration and support the skin barrier while addressing post-acne pigmentation.

3. Choose a Lightweight Formula

If you have oily or acne-prone skin, lightweight, fast-absorbing formulations are generally more comfortable for daily use.

4. Avoid Overcomplicating Your Routine

Rather than layering several products with the same active ingredient, build a simple routine that your skin can tolerate consistently.

Why Ingredient Combinations Matter

Acne-prone skin usually involves multiple concerns at the same time, such as:

Excess oil.
Inflammation.
A weakened skin barrier.
Post-acne pigmentation.

For this reason, combination formulations often provide a more comprehensive approach than relying on a single active ingredient.

Ingredient	Primary Role
Niacinamide	Helps regulate excess sebum, supports the skin barrier, and reduces pigment transfer.
Kojic Acid	Helps reduce excess melanin production by inhibiting tyrosinase.
Vitamin B5	Helps soothe and support the skin barrier.
Hydrating Ingredients	Improve moisture levels and skin comfort.

QTWAYS Recommendation for Acne-Prone Skin

If you're looking for a serum that addresses both active acne concerns and post-acne pigmentation, consider a formulation that combines multiple evidence-backed ingredients rather than relying on Niacinamide alone.

The QTWAYS 10% Niacinamide + 1% Kojic Acid Face Serum is formulated with:

10% Niacinamide to help regulate excess oil, support the skin barrier, and improve post-acne marks.
1% Kojic Acid to help reduce excess melanin production associated with post-inflammatory hyperpigmentation (PIH).
Vitamin B5 to help soothe the skin and support barrier recovery.
Hydrating ingredients that improve skin comfort during regular use.

Its lightweight texture makes it suitable for oily and acne-prone skin and easy to incorporate into both morning and evening skincare routines.

Frequently Asked Questions

Is Niacinamide good for acne-prone skin?

Yes. Niacinamide is widely used for acne-prone skin because it helps regulate excess sebum, supports the skin barrier, reduces visible redness, and improves post-acne pigmentation.

Can Niacinamide help active acne?

Niacinamide can support acne-prone skin by helping reduce inflammation and oiliness. However, it should be viewed as a supportive skincare ingredient rather than a replacement for prescription acne treatments when those are needed.

Can Niacinamide remove acne marks?

Niacinamide can help improve Post-Inflammatory Hyperpigmentation (PIH) by reducing the transfer of excess melanin to the skin's surface. Consistent use and daily sunscreen are important for visible results.

Can Niacinamide remove acne scars?

No. Niacinamide cannot rebuild lost collagen or repair indented acne scars. Procedures such as microneedling, laser resurfacing, or subcision are generally required for textural scars.

Is 10% Niacinamide too strong?

Not necessarily. Many people tolerate 10% Niacinamide well, while others—particularly those with sensitive skin—may prefer starting with a lower concentration or introducing it gradually. The overall formulation is just as important as the percentage.

Can I use Niacinamide every day?

Yes. Most Niacinamide serums are designed for daily use. If you're new to active skincare ingredients, start gradually and increase frequency as your skin adjusts.

Can I use Niacinamide with Salicylic Acid?

Yes. Salicylic Acid helps unclog pores, while Niacinamide supports the skin barrier and helps reduce irritation. They are often used together in acne-focused skincare routines.

Can I use Niacinamide with Kojic Acid?

Yes. These ingredients complement each other well. Kojic Acid helps reduce excess melanin production, while Niacinamide helps reduce pigment transfer and supports the skin barrier.

Should I use Niacinamide in the morning or at night?

Niacinamide can be used in either your morning or evening routine. If you use it during the day, always finish with a broad-spectrum sunscreen.

Does Niacinamide shrink pores?

Niacinamide cannot permanently change pore size, but by helping regulate oil production and improving skin texture, it may reduce the appearance of enlarged pores over time.

Key Takeaways

Question	Answer
Is Niacinamide good for acne-prone skin?	Yes, it supports oil control, barrier function, and post-acne pigmentation.
Does it treat acne marks?	Yes, especially brown post-acne marks (PIH).
Does it remove acne scars?	No, acne scars require collagen-remodeling treatments.
Can it be paired with Kojic Acid?	Yes, they target different stages of pigmentation and complement each other.
Can it be used daily?	Yes, if your skin tolerates it.
Is sunscreen still necessary?	Yes, daily sunscreen is essential to help prevent new pigmentation and protect the skin.

Conclusion

Niacinamide has earned its place as one of the most trusted skincare ingredients for acne-prone skin because it addresses multiple concerns at once. By helping regulate excess oil, supporting the skin barrier, calming visible redness, and improving post-acne pigmentation, it fits well into skincare routines for oily, combination, and acne-prone skin.

It's important to remember that Niacinamide is not a standalone cure for acne and it cannot repair indented acne scars. The best results come from using it consistently as part of a well-rounded skincare routine that includes gentle cleansing, moisturising, and daily sun protection.

For people looking to address both acne-prone skin and post-acne marks, combining Niacinamide with complementary ingredients can provide a more comprehensive approach.

The QTWAYS 10% Niacinamide + 1% Kojic Acid Face Serum combines 10% Niacinamide, 1% Kojic Acid, Vitamin B5, and hydrating ingredients in a lightweight formulation designed for acne-prone skin. This combination helps support the skin barrier while targeting post-inflammatory pigmentation, making it suitable for those looking to improve both skin clarity and overall skin tone with consistent use.