The only number worth comparing is the published percentage, and most brands do not publish one. These five do, or they tell you what form they used instead.
By Sawyer V. · Published October 7, 2026 · Last updated October 7, 2026
The short answer
The verdict: Naturium Tranexamic Topical Acid 5% is the pick — the highest published percentage in the effective 2-5% range, paired with kojic acid and niacinamide. For a formulated option with the strongest disclosure, Paula's Choice CLINICAL Discoloration Repair at 3% tranexamic acid plus 5% niacinamide. For under $10, Good Molecules Discoloration Correcting Serum, which uses 2% cetyl tranexamate mesylate rather than free tranexamic acid. All need twelve weeks and daily sunscreen to work.
Disclosure: Glow & Gild earns a commission when you buy through links on this page, at no extra cost to you. It does not change which product we recommend, and no brand pays for placement here. Read the full disclosure.
How We Picked
We required each product to publish either a tranexamic acid percentage or the specific derivative it uses, because this is an ingredient where the number is the whole decision and most listings hide it. Concentrations come from each brand or a major retailer, and where a brand does not publish one we say so rather than estimating. We have not tested these.
Everyone in this category says they tested twenty of these. We have not tested any, and we say so. What we did instead: compiled the published concentrations and ingredient lists, checked each claim against what the formula can actually support, and wrote down who each product is wrong for. The full method is published so you can check it.
Quick Picks
The short answer, by buyer. Select any row for the full write-up.
#
Product
Best for
Where to buy
1
Naturium Tranexamic Topical Acid 5%Top of the effective range with a published number, and the kojic acid and niacinamide give it two more routes into the same pathway..
Amazon price as of October 17, 2026, 03:02 UTC — details
2
Paula's Choice CLINICAL Discoloration Repair SerumThree published percentages on one label is rare, and the combination is the right one: tranexamic acid on signaling, niacinamide on transfer, bakuchiol on prevention..
Amazon price as of October 17, 2026, 03:02 UTC — details
4
Good Molecules Discoloration Correcting SerumA short, legible ingredient list with both percentages published, for less than the price of a sheet mask.
Amazon price as of October 17, 2026, 03:02 UTC — details
#ad — buying through these links earns us a commission at no cost to you. Prices come from Amazon’s own product data and show the date they were checked; without a current one, the button says check price.
The Five, by Published Percentage
Product
Tranexamic form and %
Partner actives
Published?
Naturium Tranexamic Topical Acid 5%
Tranexamic acid, 5%
Kojic acid, niacinamide, licorice root
Yes
Paula's Choice CLINICAL Discoloration Repair
Tranexamic acid, 3%
5% niacinamide, 0.5% bakuchiol
Yes, all three
Anua Niacinamide 10 + TXA 4
Tranexamic acid, 4%
10% niacinamide
Yes
Good Molecules Discoloration Correcting Serum
Cetyl tranexamate mesylate, 2%
4% niacinamide
Yes
Topicals Faded Serum
Tranexamic acid, % not published
Niacinamide, azelaic acid, kojic acid, melatonin
No
The effective topical range is roughly 2% to 5%, which the tranexamic acid monograph covers in detail. Within that band, a well-formulated 3% with niacinamide is a better buy than an unsupported 5%, because the two actives work on different steps of the same pathway.
Tranexamic Acid or Cetyl Tranexamate Mesylate?
Free tranexamic acid is water-soluble, which is exactly the problem: skin's barrier is lipid, so a water-loving molecule has to be pushed through it. Cetyl tranexamate mesylate is a fatty-chain ester of the same molecule, designed to cross the barrier more readily and release tranexamic acid once inside.
Free tranexamic acid at 3-5% is the form with the longest track record in the published literature, and the form nearly all dermatology studies used.
Cetyl tranexamate mesylate is used at lower percentages because its stated advantage is delivery, not dose. A 2% of the ester is not a weaker product than a 5% of the acid in any straightforward way.
You cannot compare the two numbers directly. Treat them as separate scales, and judge the product on the whole formula.
Three published percentages on one label is rare, and the combination is the right one: tranexamic acid on signaling, niacinamide on transfer, bakuchiol on prevention.
Who it’s not for
A tight budget — this is several times the price of the Good Molecules serum below it.
A short, legible ingredient list with both percentages published, for less than the price of a sheet mask. The uncomplicated choice for sensitive skin.
Who it’s not for
Anyone who specifically wants free tranexamic acid at a studied percentage — this uses the ester instead.
Tranexamic acid, niacinamide, azelaic acid, kojic acid and melatonin
The brand does not publish active percentages
0.5 fl oz; 1.7 fl oz and trial sizes also sold
The widest active stack here, aimed squarely at post-inflammatory marks rather than melasma. On the page with a caveat, not a recommendation to lead with.
Who it’s not for
Anyone comparing on dose — no percentage is published, so you cannot place it against the four above it. Also a lot of actives at once for reactive skin.
Oral tranexamic acid bought without a prescription
Oral tranexamic acid is genuinely more effective than topical for melasma, which is exactly why it is a prescription medicine and should stay one. It is an antifibrinolytic — it works by slowing clot breakdown — and the relevant risk is thrombosis. Personal and family history of clotting disorders, hormonal contraception, smoking, recent surgery and immobility all change the calculation, and none of that can be assessed by a marketplace seller. If topical is not getting you there, that conversation belongs with a dermatologist who can take a history. See [aging and pigment](/guides/concerns/aging) for the topical routes first.
Frequently Asked Questions
Roughly 2% to 5% topically. Below 2% there is little rationale; above 5% there is no evidence of added benefit in over-the-counter formulas.
It is a fatty-chain ester of it, designed to cross the skin barrier more easily and release tranexamic acid inside. The percentages are not directly comparable.
Twelve weeks. Pigment turns over slowly, and judging at four weeks is the most common reason people conclude it failed.
Yes, and it is the best pairing available — they act on different steps of the same pigment pathway. Several serums here combine both.
Yes. Split them across AM and PM for vitamin C, and alternate nights with a retinoid, since irritation is additive.
It is far better tolerated and can be used continuously, which matters for melasma. Hydroquinone is more potent and is restricted for that reason.
By Sawyer V.. An enthusiast who’s genuinely into this: I read the manufacturer documentation, compile the published percentages, and do the arithmetic. No lab coat.
What I don’t do: test products, accept free product, or accept payment for placement. I hold no clinical credential and don’t claim one. How we pick.
Published October 7, 2026 · Last updated October 7, 2026
