Anua’s green and pink serums answer different shopping questions. Choosing by bottle colour, a celebrity recommendation or the largest percentage makes it easy to buy an extra treatment you do not need. Start with your main concern, the ingredients you already use and your history of irritation. This comparison covers the exact 30 ml formulas, with Purito’s newer TXA serum as an alternative.
Compare Anua Azelaic Acid 10 if you specifically want an azelaic-acid formula. Compare Anua Niacinamide 10 TXA 4 if uneven-looking tone is the priority and you already tolerate niacinamide. Purito adds retinal, which changes the precautions. There is no need to buy all three.
At a glance
| Product | Published formula or size | Why it matters |
|---|---|---|
| Anua green serum | 10% azelaic acid | A distinct azelaic-acid option; also contains niacinamide and betaine salicylate |
| Anua pink serum | 10% niacinamide + 4% TXA | Retinoid-free tone-care formula; 2% arbutin is also disclosed |
| Purito TXA serum | 6% TXA + 10% niacinamide + 25 ppm retinal | Newer combined formula; 25 ppm retinal equals 0.0025% |
Choose one concern before choosing a serum
If your skin mainly feels tight after cleansing, a moisturizer or a simpler hydration step may be the more useful purchase. A serum aimed at marks adds complexity without necessarily solving that discomfort. If your existing routine is comfortable, decide whether you are comparing azelaic acid specifically or a formula focused on uneven-looking tone.
Redness, brown post-blemish marks and indented acne scars are not interchangeable. A cosmetic comparison cannot identify the cause of persistent redness or changing pigmentation. Seek professional advice for those concerns instead of buying several stronger serums and hoping one will work.
Sources: DermNet — Azelaic acid
Read the whole formula, not just the headline
Anua’s green serum is not pure azelaic acid in water: the published ingredient list also includes niacinamide and betaine salicylate. If either has bothered you before, the green bottle is not an automatic escape route. Conversely, Anua’s pink serum has a high niacinamide concentration; more is not necessarily more comfortable.
Purito’s label needs particularly careful reading. Its 16% headline combines 6% tranexamic acid and 10% niacinamide. The retinal is separately listed at 25 ppm, or 0.0025%. Do not read that as 16% retinal, or compare the number directly with a retinol percentage. We treat this newer product as an alternative with additional precautions, not a proven upgrade over Anua.
Sources: Anua — Azelaic Acid 10 · Anua — Niacinamide 10 TXA 4 · Purito — TXA 6 Niacinamide 10 Retinal Serum
Introduce one change and keep the rest familiar
Keep a gentle cleanser, moisturizer and daytime sunscreen that you already tolerate. Test the new product on a small area according to its instructions, then introduce only that one formula. Leave other new acids, exfoliating pads and retinoids for another time so you can identify what caused a reaction.
Do not layer Anua TXA and Purito TXA simply because they target similar concerns. The overlapping niacinamide and extra retinal make that a more complicated routine, not a demonstrated shortcut. Retinoid-containing Purito should be avoided in pregnancy; ask for individual advice when planning pregnancy, breastfeeding or using prescription skincare.
Sources: American Academy of Dermatology — Testing skincare · American Academy of Dermatology — Retinoids and retinol
Judge comfort and value before buying again
Take a starting photograph in ordinary, repeatable lighting. Record the product and frequency rather than changing the routine every few days. Early shine or a plumper appearance is not the same as a lasting change in marks. Stop if the product causes a troublesome reaction; persistent burning is not a success signal.
Compare the final delivered price for the same 30 ml size, including shipping. A cheaper offer for a miniature, multipack or different formula is not the same purchase. We have not personally tested these serums, and no head-to-head trial in this research establishes one universal winner.
The products in this comparison
Advertising · Affiliate links. We may earn a commission from a purchase through a marked link. We have not personally tested these products.
Anua
Azelaic Acid 10 Hyaluron Redness Soothing Serum
Comparing an azelaic-acid formula for uneven-looking toneA 10% azelaic-acid serum with hydrating ingredients. It is a targeted treatment choice, rather than a replacement for a plain hydrating serum.
View official product photos ↗Stylevana USA brand store · affiliate ↗Read the full review →Anua
Niacinamide 10 TXA 4 Serum
Uneven-looking tone when high-strength niacinamide is already toleratedAnua publishes 10% niacinamide, 4% tranexamic acid and 2% arbutin for this pink serum. Those numbers describe the formula, not a guarantee that marks will disappear.
View official product photos ↗Stylevana USA brand store · affiliate ↗Read the full review →Purito Seoul
TXA 6 Niacinamide 10 Retinal Serum
Experienced users comparing a combined tone-care and retinal formulaPurito combines 6% tranexamic acid, 10% niacinamide and 25 ppm retinal. The retinal amount is 0.0025%; the prominent 16% refers to TXA plus niacinamide.
View official product photos ↗Stylevana USA brand store · affiliate ↗Read the full review →Check your destination before ordering
These Stylevana links use the US affiliate store. A translated article does not mean the US store delivers to your country. Check the destination, exact product and pack size, dispatch estimate and final delivered price before paying. Links marked “brand store” open a brand listing; match the full product name there.
Frequently asked questions
Can I use Anua azelaic acid and niacinamide together?
The green Anua formula already includes niacinamide. Compatibility of ingredient names does not establish that layering two complete products will suit you. Begin with one serum; a second is often unnecessary.
Which is better for sensitive skin?
Neither high-percentage formula is a universal sensitive-skin choice. Previous tolerance and the full ingredient list matter. With persistent redness or an irritated barrier, seek advice before adding an active.
Is Purito TXA stronger than Anua TXA?
It has a higher disclosed TXA percentage and adds retinal, but those differences do not prove better results. It also brings different tolerance and pregnancy considerations.
Sources and selection method
We compared the published formula, exact size, intended routine role and foreseeable drawbacks. Manufacturer claims and customer ratings are not substitutes for independent trials. We have not identified a head-to-head study establishing an overall winner. Product pages and formulas can change; check your current pack.