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Anua Anua Niacinamide 10% + TXA 4% Serum — Korean skincare product photo
Anua

Anua Niacinamide 10% + TXA 4% Serum

Quick verdict

  • Best for:Dull, uneven skin with post-blemish marks
  • Skip if:Your skin is reactive to niacinamide or you expect fast spot fading
  • Key ingredient:Niacinamide 10% + tranexamic acid 4%
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A lightweight brightening serum formulated with 10% niacinamide, 4% tranexamic acid, and hyaluronic acid to support hydration and improve the appearance of dark spots and uneven skin tone.

Our verdict

Anua Niacinamide 10% + TXA 4% Serum is designed for users concerned about post-blemish marks, dullness, uneven tone, and dehydration. Amazon reviewers frequently praise its moisturizing feel, lightweight formula, and ability to layer well under moisturizer and makeup. Many users also report that their skin looks brighter and more even with consistent use. However, texture and skin compatibility receive mixed feedback. Some reviewers find the serum smooth and fast-absorbing, while others describe it as sticky. A smaller number report breakouts or irritation, so users with sensitive or acne-prone skin should introduce it gradually. The formula combines two well-known tone-supporting ingredients—10% niacinamide and 4% tranexamic acid—but results on persistent pigmentation can take time and are not guaranteed. Anua currently lists this serum as part of its tranexamic-acid dark-spot care range.

What stands out

  • 10% Niacinamide — Helps support a brighter, more even-looking complexion and balanced moisture barrier
  • 4% Tranexamic Acid — Included to improve the appearance of discoloration and post-blemish marks
  • Hydrating Support — Hyaluronic acid and humectants help reduce dryness while using brightening ingredients
  • Lightweight Serum Texture — Designed to layer beneath moisturizer, sunscreen, and makeup
  • Daily Tone Care — Suitable for a consistent morning or evening brightening routine
  • Glass-Skin Finish — Can leave well-hydrated skin looking smoother and more luminous

Key ingredients

  • Niacinamide 10%
  • Tranexamic Acid 4%
  • Hyaluronic Acid
  • Arbutin
  • Ceramide NP
  • Panthenol

How to use

After cleansing and toner, apply two to three drops evenly over the face, concentrating on areas of uneven tone or visible post-blemish marks. Gently pat until absorbed, then follow with moisturizer. It can be used in the morning or evening. When used during the day, always finish with broad-spectrum sunscreen. Without consistent sun protection, dark spots may remain visible or become more noticeable. Begin once daily or every other day if your skin is sensitive. Avoid introducing it alongside several new exfoliating acids, retinoids, or strong vitamin C products in the same routine until your skin's tolerance is clear.

Pros & Cons

Pros

  • Two well-documented tone-supporting actives in one serum
  • Hyaluronic acid and ceramide NP offset dryness
  • Lightweight texture layers under moisturizer, SPF and makeup
  • Suitable for a consistent morning or evening brightening routine

Cons

  • Some reviewers find it sticky while absorbing
  • A smaller number report breakouts or irritation
  • Results on persistent pigmentation take weeks and are not guaranteed

Frequently asked questions

Does the Anua Niacinamide 10% + TXA 4% serum fade dark spots?

Niacinamide and tranexamic acid both improve the appearance of uneven tone and post-blemish marks with consistent use. Changes are gradual — typically over several weeks — and daily sunscreen is essential, or spots can remain visible.

Can I use it with retinol?

Many people layer niacinamide with retinoids without problems, and the serum's hydrating ingredients can buffer retinoid dryness. If your skin is new to either active, use the serum in the morning and retinol at night first, then combine once tolerance is established.

Is 10% niacinamide too strong?

Ten percent is a common concentration that most skin tolerates, but beginners or reactive skin can experience flushing or stinging. Start with once daily or every other day, and stop if persistent redness appears.

Can I use it with vitamin C?

Modern formulations generally layer fine, but combining multiple brightening actives can irritate some skin types. A simple approach is tranexamic acid and niacinamide in the morning and vitamin C or retinol at night, introduced one at a time.

Who should buy it

  • You want a targeted brightening serum for dullness and marks
  • You already wear sunscreen daily
  • You want a lightweight serum that layers easily

Who should skip it

  • You have known niacinamide sensitivity
  • You expect visible spot-fading within days
  • Your routine is already full of strong actives

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The current product is officially identified as NIACINAMIDE 10% + TXA 4% Serum by Anua. Ingredient lists may vary slightly by market or formula update, so the packaging should be checked before use. Price and rating information may change. Check Amazon for the latest details.

See this product in our Best Korean Skincare for Glass Skin guide.

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