Anua Niacinamide 10% + TXA 4% Serum Review: Benefits, Side Effects and How to Use

Dark spots, acne marks and dull skin are some of the most common skin worries we hear about in our store. One serum that comes up again and again is the Anua Niacinamide 10% + TXA 4% Serum. It went viral online, and many people now ask us if it really works.

In this review, we explain what is inside the Anua Niacinamide Serum, what it does, who it suits, and how to use it. We also cover side effects and the big question: should you use it in the day or at night?

What Is the Anua Niacinamide 10% + TXA 4% Serum?

It is a light, watery serum from the Korean brand Anua. Its main job is to fade dark spots and even out your skin tone. It also helps control oil and makes pores look smaller.

Anua recently changed the name and the box. The old name was the "Niacinamide 10% + TXA 4% Dark Spot Correcting Serum". The new name is the "Niacinamide 10 TXA 4 Serum". The formula inside is the same.

Key Ingredients and What They Do

This serum has three main brightening ingredients. It also has several calming and moisturising ones. Here is a simple breakdown.

What is niacinamide?

Niacinamide is a form of vitamin B3. It is one of the most useful skincare ingredients you can buy. It helps with many problems at once. It balances oil, softens the look of pores and helps fade marks. It also makes your skin barrier stronger, so your skin holds water better.

What are the benefits of TXA?

TXA stands for tranexamic acid. It is a gentle brightening ingredient. Your skin makes extra pigment after sun, pimples or irritation. That extra pigment shows up as dark spots. TXA helps calm that process. Over time, spots look lighter and your skin tone looks more even.

The good thing about TXA is that it is gentle. It does not peel the skin like strong acids. That is why it pairs so well with niacinamide.

Benefits of the Anua Niacinamide Serum

• Fades dark spots: Helps lighten acne marks, sun spots and patchy areas.

• Evens skin tone: Skin looks brighter and more even with regular use.

• Controls oil: Helps oily skin stay less shiny during the day.

• Smaller-looking pores: Pores look tighter and less visible.

• Keeps skin moist: Unlike many brightening serums, it does not dry the skin out.

• Light feel: It sinks in fast and does not feel sticky, even in hot weather.

Who Should Use It?

Is it good for oily skin?

Yes. Oily skin often loves this serum. The niacinamide helps balance oil, and the texture is light enough for humid days.

Is it good for dry skin?

Yes. This surprises many people. Most brightening serums can feel drying. But this one has hyaluronic acid, polyglutamic acid and ceramides. So it adds moisture while it works. Dry skin should still use a good moisturiser on top.

Is it good for sensitive skin?

For most people, yes. It has calming ingredients like panthenol and centella. But it also has a small amount of a mild exfoliant called betaine salicylate. So if your skin reacts easily, start slowly. We have a full guide on this topic: Is Anua Niacinamide Serum good for sensitive skin?

How to Use the Anua Niacinamide Serum

1. Wash your face with a gentle cleanser.

2. Apply toner if you use one.

3. Put 2 to 3 drops of serum on your fingertips.

4. Pat it gently over your face and neck.

5. Wait about a minute for it to sink in.

6. Follow with your moisturiser.

7. In the morning, finish with sunscreen.

Tip: Sunscreen is not optional with this serum. Without daily sunscreen, the sun will keep making new dark spots. Then the serum cannot keep up.

Should You Use It in the Day or at Night?

You can use it either way. Both work well.

• Morning: Use it after toner, then moisturiser and sunscreen. Niacinamide helps control oil during the day, which is great for oily skin.

• Night: Use it after cleansing, then moisturiser. This is a good choice if you use a vitamin C serum in the morning.

Most people use it once a day. If your skin likes it, you can use it twice a day.

When Should You Use a Niacinamide Serum in Your Routine?

A simple rule is to go from thinnest to thickest. Serums go after toner and before cream. Here is a simple order:

1. Cleanser

2. Toner

3. Niacinamide serum

4. Moisturiser

5. Sunscreen (morning only)

Side Effects: What to Expect

Most people use this serum with no problems. But a few people notice some changes in the first week or two. These can include:

• Mild tingling

• Light redness

• A few small breakouts

This is usually your skin getting used to a new product. If it happens, use the serum every other day for a week or two. Then slowly go back to daily use.

Stop using it if you get strong burning, itching or a rash. If the problem does not go away, see a doctor.

Do a patch test first. Put a small amount on your jawline for two nights. If your skin stays calm, you are good to go.

Can You Mix It With Other Products?

Yes, but keep it simple at first.

• Vitamin C: Use vitamin C in the morning and Anua at night. Or use both in the morning once your skin is used to them. Our Skin Deva Vitamin C serum is a popular morning partner. Read our Skin Deva Vitamin C serum review to learn more.

• Centella: This is a calming pair. A centella ampoule like the SKIN1004 Centella Ampoule works well with it, especially for red or sensitive skin.

• Retinol: Use Anua in the morning and retinol at night.

• Strong acids: Avoid strong AHA or BHA in the same routine until your skin is used to the serum.

How Long Does It Take to Work?

Be patient. Skincare takes time.

• 1 to 2 weeks: Skin feels smoother and more hydrated.

• 4 to 6 weeks: Skin tone starts to look more even.

• 8 to 12 weeks: Dark spots look clearly lighter.

Results are best when you use it every day and wear sunscreen daily.

Our Honest Verdict

The Anua Niacinamide 10% + TXA 4% Serum is one of the best dark spot serums for the price. It is gentle enough for most skin types. It does not dry the skin out like many brightening products. And it is easy to add to any routine.

It is not a magic overnight fix. But if you use it daily with sunscreen, most people see a real change in their skin tone within a few months.

Best for: Dark spots, acne marks, dull skin, oily skin and large pores.

Maybe not for: Very reactive skin that cannot handle any active ingredients.

Frequently Asked Questions (FAQs)

Can I use the Anua niacinamide serum every day?

Yes. It is gentle enough for daily use for most people.

Is it safe to use during pregnancy?

Niacinamide is generally seen as low risk. But always ask your doctor before starting any new skincare during pregnancy.

Can teenagers use it?

Yes. It can help with acne marks and oily skin. Teens should use a simple routine with sunscreen.

How do I know if my serum is genuine?

The real serum is a pale pink liquid. The batch code on the box should match the code on the bottle. The best way to stay safe is to buy from a trusted seller.

Where to Buy the Anua Niacinamide Serum in Nepal

At Color Cosmetics Nepal, every Anua product is 100% genuine. We deliver in 1 day across Jhapa and in 1 to 3 days across Nepal. You can also visit our store at Basnet Market, Birtamode, Jhapa.

Buy the Anua Niacinamide serum in Nepal

Not sure if this serum is right for your skin? Tell us your skin type and your main concern. We will help you choose the best product for your skin type. Chat with us on WhatsApp.