If you've been struggling with dull skin, dark spots, or uneven texture, you've probably heard the name Niacinamide come up again and again in the skincare world. I finally tried the Anua Niacinamide 10% + TXA 4 Serum — and after several weeks of consistent use, here's my honest take.
What's Inside the Bottle?
This serum combines two powerful brightening ingredients:
- Niacinamide 10% — a form of Vitamin B3 that visibly reduces the appearance of pores, evens skin tone, and strengthens the skin barrier.
- TXA (Tranexamic Acid) 4% — a gentler alternative to hydroquinone that targets hyperpigmentation and dark spots without irritating sensitive skin.
Together, these two ingredients make a genuinely impressive brightening duo — especially for people dealing with post-acne marks or sun spots.
Texture and Application
The serum has a lightweight, watery texture that absorbs almost instantly. It doesn't leave any sticky residue, which makes it easy to layer under moisturizer or SPF. I apply it after cleansing on clean, dry skin — just 2–3 drops morning and evening.
My Results After 4 Weeks
I noticed a difference in overall brightness within the first two weeks. By week four, some of my older dark spots had visibly faded. My pores also looked less congested, which I didn't expect from a brightening serum. Skin felt smoother and more even under makeup too.
One thing worth noting — if you have sensitive skin, start with once-daily use and build up. The 10% Niacinamide concentration is on the higher end and can cause mild flushing for some people in the first few days.
Who Is This For?
This serum is ideal if you're dealing with:
- Post-acne hyperpigmentation (dark marks left after breakouts)
- Uneven skin tone or dullness
- Enlarged-looking pores
- Sun spots or melasma (mild cases)
It works for all skin types, and because it's fragrance-free and alcohol-free, even sensitive skin types tend to tolerate it well.
Bottom Line
The Anua Niacinamide 10% + TXA 4 Serum delivers real brightening results without the harsh side effects you'd get from stronger actives like retinol or acids. For the price point on Amazon, it's one of the best K-beauty serums I've tried this year. If brightening is your goal, this one earns its place in your routine.
*As an Amazon Associate, BeautyCareDiary earns from qualifying purchases. Price and availability are subject to change — please verify on Amazon before purchasing.
