A September 2026 shelf audit of Olive Young found tranexamic acid with a whole dedicated row — serums, pads, sunscreen, sheet masks.
TXA serums from Anua and Celimax now hold 4.8–4.9 star ratings with thousands of reviews, and PDLLA and copper peptide products are newly shelved next to them.
At the same time, Anua’s PDRN serum received an Olive Young Pick collaboration edition for September.
This post answers what overseas shoppers are asking: is PDRN over, what is replacing it, and how to pick a TXA tranexamic acid serum in Korea.
It also covers the one ingredient line you cannot buy at Olive Young Korea at all.
Contents
- TXA tranexamic acid serum Korea: Olive Young’s September 2026 shelf already picked the PDRN successor
- Best TXA serum at Olive Young Korea
- What TXA actually does — not bleaching, signal blocking
- How to choose: why 2–5% is the range and 10% is not better
- How to use it: TXA + niacinamide + sunscreen
TXA tranexamic acid serum Korea: Olive Young’s September 2026 shelf already picked the PDRN successor
No — PDRN is still on shelves, and Anua’s PDRN serum just received an Olive Young Pick collaboration edition in September 2026.
What changed is the shelf next to it.
TXA now takes a whole dedicated row at Olive Young, with serums, pads, sunscreen, and sheet masks, according to a shelf audit published September 8, 2026.
For overseas shoppers, this means new K-beauty launches to watch have shifted from PDRN to TXA, while PDLLA and copper peptides are the other arrivals to know.
PDRN is being merchandised alongside the TXA wave rather than disappearing.
So a September Olive Young order can hold both — and the deciding factor is what each one does, covered below.
| TXA (tranexamic acid) | Whole dedicated row — serums, pads, sunscreen, sheet masks |
|---|---|
| PDRN | Still sold; Anua serum got a September Olive Young Pick collab |
| PDLLA | Newly shelved as of September 2026 |
| Copper peptides | Newly shelved as of September 2026 |
| Azelaic acid | Not sold at Olive Young Korea — Anua and Skin1004 lines are overseas-only |
Best TXA serum at Olive Young Korea
Two brands lead the new TXA row: Anua and Celimax.
Both TXA serums hold 4.8–4.9 star ratings with thousands of reviews on Olive Young as of the September 2026 audit.
Exact shelf prices and per-product review counts were not confirmed in the sources available, so treat those two points as something to check on the Olive Young app before ordering.
For overseas buyers, the practical move is to search the Olive Young global app for each brand’s TXA serum and compare the listed concentration and volume.
Beyond serum, the TXA row also includes pads, sunscreen, and sheet masks, so a full TXA routine can be built from one aisle.
One gap matters: Anua and Skin1004 azelaic acid lines are sold only overseas and cannot be found at Olive Young Korea.
What TXA actually does — not bleaching, signal blocking
TXA does not destroy melanin or bleach the skin.
It blocks the plasmin enzyme pathway upstream, so skin cells stop over-stimulating pigment production after UV, hormones, or inflammation.
A 2026 review in the Journal of Cosmetic Dermatology found that all three TXA routes — oral, topical, and intradermal microinjection — significantly improve melasma.
Topical TXA matched or beat hydroquinone on pigment improvement, with less irritation and no rebound pigmentation risk.
It also causes almost no irritation compared with vitamin C, which is why it suits long-term use and sensitive or post-laser skin.
Results take time: most users see measurable improvement within 8–16 weeks of consistent use.
Since TXA works by calming the signal rather than lifting pigment, existing dark marks fade slower than they would with a stronger active — patience is part of the deal.
How to choose: why 2–5% is the range and 10% is not better
In a 12-week clinical study on post-inflammatory hyperpigmentation, 1% TXA reduced pigmentation by 15%, 3% by 38%, and 5% by 46%.
That is a gap of 31 percentage points between 1% and 5% — the concentration on the label changes what you get.
Above 5%, the gain nearly stops: 10% delivered only 48%, while adding dryness and irritation risk.
So 3–5% is the band worth paying for, and under 2% shows little effect.
Check the label for the TXA percentage first, then for pairing ingredients like niacinamide or glutathione.
A serum buffered to pH 5.0–5.5 absorbs deeper, and a yellowed bottle signals oxidation — a quality red flag.
Unlike vitamin C, TXA does not oxidize easily, so ordinary cool, shaded storage is enough.
How to use it: TXA + niacinamide + sunscreen
The routine order that Korean guides recommend: sunscreen by day, then TXA serum to suppress melanin signals, then niacinamide to block pigment transfer, then an antioxidant step.
TXA pairs with niacinamide (2–5%) and reduces dark spots faster than either alone, because the two block different steps of the same pathway.
Apply the TXA serum once daily, preferably at night on cleansed skin, and patch test first if your skin is sensitive.
Sunscreen is not optional: strong UV can break through TXA’s defense, so brightening care only completes with sun protection.
Topical TXA works best on surface-level pigmentation; deeper melasma responds better to oral or in-clinic routes, which need a dermatologist.
Expect around 12 weeks of consistent use before judging results — that is the window the studies measure.
Related posts
📎 Olive Young — everything we know
📎 📅 다가오는 일정 — 발매·개봉·발표 캘린더
Sources
- GlowOlive Sept 2026 audit: TXA dedicated row, Anua/Celimax 4 (glowolive.net)
- 2026 J Cosmet Dermatol review: all three routes work; oral l (tetrapod.beauty)
- 2–5% effective; apply thinly, layer on melasma spots, niacin (kiheo.tistory.com)
If you are ordering from abroad this autumn
- Check the label for 3–5% TXA; 1% is too weak and 10% only adds irritation risk.
- Azelaic acid is the one line you cannot buy at Olive Young Korea — Anua and Skin1004 sell it overseas-only.
- Confirm exact prices and star ratings on the Olive Young app before ordering; this post does not list them.
- If your dark spots are melasma, ask a dermatologist about combining topical TXA with in-clinic options rather than switching serums every month.
FAQ
Q. Is PDRN over in Korean skincare?
No. Anua’s PDRN serum received an Olive Young Pick collaboration edition in September 2026, so PDRN is still merchandised — TXA just took the bigger new shelf space next to it.
Q. What ingredient is replacing PDRN in Korea?
Tranexamic acid (TXA) leads, with a dedicated Olive Young row of serums, pads, sunscreen, and sheet masks. PDLLA and copper peptides are the other new arrivals on shelves as of September 2026.
Q. What concentration of TXA serum actually works?
3–5%. In a 12-week study, 1% cut pigmentation 15%, 3% cut 38%, and 5% cut 46% — while 10% only reached 48% with more irritation risk.
Open the Olive Young app and check today’s TXA serum ratings before you buy — then start with 3–5% TXA plus sunscreen, and give it 8–16 weeks.
Cover photo: Dropper bottle, blank retro label — CC0 1.0
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