Skin & Aesthetics · Pigmentation
Tranexamic Acid Therapy for Melasma in Seoul
Tranexamic acid therapy uses tranexamic acid, a medicine originally developed to reduce bleeding, to calm the signals that drive pigment production, which can lighten melasma and other stubborn pigmentation. At Hommage Clinic in Gangnam, Seoul, Dr. Hwang Seonhwa screens your clotting risk and hormone use before prescribing oral, topical or in-clinic tranexamic acid as part of a wider plan.
Quick answer
Tranexamic acid therapy uses a low dose of tranexamic acid, as tablets, a topical serum or tiny in-clinic injections, to calm the plasmin pathway that switches on pigment cells and lighten melasma. At Hommage Women's Clinic in Gangnam, Seoul, Dr. Hwang Seonhwa screens clot risk and hormone use first. Lightening usually starts after 4–8 weeks; oral courses run about 3–6 months, combined with sunscreen and creams.
Key takeaways
- It reduces pigment production rather than bleaching the skin.
- Oral, topical and injected forms all lowered melasma scores in a 2018 meta-analysis of 21 studies.
- Oral tablets are not for people with a history of clots, stroke, pregnancy or certain hormone use.
- Melasma often returns after stopping, so the plan ends with maintenance, not just a last tablet.
Infographic
Tranexamic acid for melasma in numbers
Lightening begins
Clearer change by about 3 months.
Typical oral course
With check-ins every 4–8 weeks.
Twice daily
The oral dose most studies used for melasma.
Studies in a meta-analysis
1,563 patients; oral, topical and injected forms all helped.
Forms
Tablets, topical serum or cream, intradermal microinjection.
Safety screening
Clot, stroke, kidney, pregnancy and hormone history.
Tranexamic acid therapy at a glance
| Key fact | Details |
|---|---|
| What it is | A prescription medicine that reduces pigment signaling in the skin; used for melasma |
| Forms | Oral tablets, topical serums or creams, and in-clinic intradermal microinjections |
| Typical course | Oral courses usually last about 3–6 months, with check-ins along the way |
| Results visible | Lightening often begins after 4–8 weeks of consistent use |
| How long results last | Melasma often returns after stopping, so maintenance and sunscreen are needed |
| Not suitable if | History of blood clots, stroke or clotting disorders, or pregnancy |
| Reviewed by | Dr. Hwang Seonhwa, physician for skin and aesthetic treatments |
Tranexamic acid may suit you if you have
- Melasma confirmed by a doctor, especially if it is moderate or widespread
- Melasma that has not improved enough with sunscreen and topical creams
- Pigment that rebounds easily after laser or peels
- No personal or strong family history of blood clots
Oral tranexamic acid may not suit you if you
- Have had a blood clot (DVT or pulmonary embolism), stroke or heart attack
- Have a known clotting disorder or take blood-thinning medication
- Are pregnant, trying to conceive, or have significant kidney disease
- Take a combined birth control pill or hormone therapy and smoke (discuss first)
How does tranexamic acid work for melasma?
Tranexamic acid lightens melasma by blocking plasmin, a substance that activates pigment cells. In the skin, plasmin helps release signals such as prostaglandins that tell melanocytes to make more pigment, especially after UV exposure. By interrupting that pathway, tranexamic acid reduces pigment production rather than bleaching the skin.
It may also reduce the small blood vessels and redness that are part of melasma. Tranexamic acid has been used for decades to treat heavy menstrual bleeding, and randomized clinical studies over the past decade have shown that much lower doses can lighten melasma. It is one option within a full melasma treatment plan, not a stand-alone cure.
Oral, topical or in-clinic: which form is right for you?
The form depends on how severe your melasma is and your medical history. Your doctor will explain which ones suit you.
- Oral tablets: the most studied form for moderate to severe melasma. The dose for skin is low, a small fraction of the dose used for heavy periods, and it is prescribed only after screening.
- Topical serums and creams: lower risk and suitable for many people who cannot take tablets, though the effect is usually milder.
- Intradermal microinjections: tiny amounts placed into the skin in clinic, sometimes combined with low-energy laser toning .
Combining tranexamic acid with daily sunscreen and a topical lightener usually works better than any single step. For blotchy tone that is not melasma, see skin tone evenness therapy .
Who should not take oral tranexamic acid?
Because tranexamic acid affects clot breakdown, oral treatment is avoided in people with a higher risk of blood clots. Screening is the most important step before a prescription.
- A past blood clot in the legs or lungs, stroke, heart attack or a known clotting disorder.
- Pregnancy, or actively trying to conceive.
- Significant kidney disease, since the drug is cleared by the kidneys.
- Use of a combined birth control pill or hormone therapy, especially with smoking, migraine with aura or other risk factors. Estrogen also raises clot risk, so the two are considered together.
If you use hormonal medication, our gynecology team can review options on the birth control and hormone replacement therapy pages.
How long does tranexamic acid take to work?
Most people notice gradual lightening after about 4–8 weeks, with clearer improvement by 3 months. Oral courses usually run about 3–6 months, with check-ins to review progress and side effects.
Melasma often returns after stopping, particularly with sun exposure or hormonal change. A typical plan tapers to topical maintenance, strict sun protection and occasional in-clinic care rather than taking tablets indefinitely.
Tablets are taken by mouth at home, usually once or twice a day with food. Skipping doses or stopping sunscreen slows progress, so it helps to set a daily routine and keep a simple photo diary in the same light every few weeks.
Risks and possible side effects
At the low doses used for melasma, side effects are usually mild, but they matter and are reviewed before you start.
- Common: stomach upset, bloating, headache and lighter or shorter periods.
- Topical or injected forms: mild redness, dryness, irritation or small bruises at injection points.
- Rare but serious: blood clots. Studies of low-dose use for melasma have reported very few clot events, but the risk is higher in people with existing risk factors, which is why screening matters.
Stop the tablets and seek urgent care if you develop leg pain or swelling, sudden shortness of breath, chest pain, or sudden weakness, numbness or difficulty speaking. Contact the clinic for any other new symptoms.
Tranexamic acid therapy at Hommage Clinic
Hommage Clinic is a women's health and skin clinic in Gangnam, a short walk from Sinnonhyeon Station. Because melasma and clot risk are both closely linked to hormones, it helps that skin and gynecology care sit under one roof. Read more aboutskin care for hormonal changes.
Dr. Hwang Seonhwa reviews your medical history, medications and contraception before prescribing, and schedules follow-up to adjust or stop treatment. Walk-ins are welcome during opening hours. Tranexamic acid for skin pigmentation is usually treated as cosmetic care and is not covered by National Health Insurance; cost depends on the form, length of the course and any combined treatment, and you receive a written quote first. See our otherskin and aesthetic treatments.
Mechanism
How tranexamic acid lightens melasma, step by step
When skin is exposed to UV light, it produces more plasminogen activator, which turns plasminogen into plasmin. Plasmin releases messengers, such as arachidonic acid and prostaglandins, that tell pigment cells (melanocytes) to make more melanin. Tranexamic acid blocks the step where plasminogen becomes plasmin, so fewer of these messengers are released and pigment production slows.
Because it works on the signal rather than destroying pigment, tranexamic acid is gentle on the skin surface and fits well with other steps such as sunscreen, creams and low-energy laser. It does not remove pigment that is already deep in the skin overnight; existing pigment fades gradually as the skin renews.
Compare forms
Oral vs topical vs injected tranexamic acid
A 2018 meta-analysis of 21 studies and 1,563 patients found that all three forms reduced melasma scores when used alone, with no clear difference between them. Adding oral tranexamic acid to other treatment gave a further benefit. The choice therefore depends less on which is “strongest” and more on your health, your preferences and what else is in your plan.
| Compare | Oral | Topical | Microinjection |
|---|---|---|---|
| How it is used | Tablets at home, usually twice daily | Serum or cream once or more daily | Tiny amounts into the skin at clinic visits |
| Best suited to | Moderate to widespread melasma | Mild melasma or when tablets are unsuitable | Those wanting in-clinic care, sometimes with toning |
| Common side effects | Stomach upset, headache, lighter periods | Redness, dryness, scaling | Injection-site discomfort, brief swelling |
| Screening | Full clot-risk and hormone review | Skin sensitivity check | Medical history and skin check |
Hommage · Gangnam
Hommage Women's Clinic · Gangnam, Seoul
Topical serums suit many people who cannot take tablets. Illustrative photo.
At home
Using topical tranexamic acid serum or cream
Topical tranexamic acid is applied directly to the patches, so very little reaches the bloodstream. In studies it was used in strengths from 0.5% to 5%, once or several times a day. It is a reasonable option if tablets are not suitable for you, or as maintenance after an oral course.
- Apply a thin layer to clean, dry skin before moisturizer, morning and evening or as directed.
- Start slowly if your skin is sensitive; redness, dryness or scaling can occur.
- Always follow with tinted sunscreen in the morning; topical treatment cannot outrun daily sun exposure.
- Avoid layering many active products at once; ask before adding acids or retinoids.
Safety first
Tranexamic acid side effects and safety screening
In published studies of low-dose tranexamic acid for melasma, side effects were mostly minor: heartburn, nausea, stomach discomfort, headache and lighter or less frequent periods. In one meta-analysis, lighter periods were reported in 14.7% of women taking it by mouth. Rare allergic reactions have also been described.
The more important question is who should not take it. Tranexamic acid slows the breakdown of clots, so it is avoided when clot risk is already raised. The checklist below shows what Dr. Hwang asks before every oral prescription. Bring your medicine list and contraceptive packet to make this quick and accurate.
- Have you ever had a blood clot, stroke or heart attack? Including clots in the legs or lungs.
- Do you have a clotting disorder or take blood thinners? Or a family history of early clots.
- Do you take a combined pill or hormone therapy? Especially with smoking or migraine with aura.
- Are you pregnant, trying to conceive or breastfeeding? Oral courses are postponed.
- Do you have kidney disease? The drug is cleared by the kidneys.
- Any planned surgery or long-haul flight soon? Timing may be adjusted.
Hommage · Gangnam
Hommage Women's Clinic · Gangnam, Seoul
A full health history is reviewed before any oral prescription. Illustrative photo.
Your course
Tranexamic acid treatment timeline: before and after, month by month
An oral tranexamic acid course has a clear beginning, middle and end. Most studies of oral treatment ran about 12 weeks, and courses at Hommage usually last 3–6 months with reviews every 4–8 weeks. The end of the course is planned from the start, so you move to topical maintenance rather than staying on tablets indefinitely.
Hommage · Gangnam
Hommage Women's Clinic · Gangnam, Seoul
Tablets are taken at home as part of a daily routine. Illustrative photo.
Making it work
Combining tranexamic acid with sunscreen, creams and laser
Tranexamic acid works best as part of a plan. In a 2024 meta-analysis of four randomized trials with 480 patients, adding oral tranexamic acid to a triple-combination cream reduced melasma scores more than the cream alone and lowered the risk of relapse, without a significant increase in redness or burning.
A typical daily routine
- Morning: gentle cleanser, tablet with breakfast if prescribed, tinted broad-spectrum SPF 30+.
- Daytime: reapply sunscreen outdoors, hat in strong sun, avoid saunas and long heat exposure.
- Evening: tablet with dinner if prescribed twice daily, then your topical lightener or tranexamic acid serum.
- In clinic: optional low-energylaser toningor agentle peelwhen the skin is calm.
Glutathione is sometimes marketed alongside tranexamic acid for brightening, but the evidence is weaker; see ourglutathione injectionpage for an honest overview.
Evidence
Does tranexamic acid work for melasma? What the research says
Tranexamic acid is one of the better-studied newer options for melasma, with several meta-analyses. They agree that it lowers melasma severity scores and that side effects at melasma doses are usually minor. They also agree that many of the individual studies are small and of low quality, so the size of the benefit is uncertain and long-term data are limited.
Studies / patients
Oral, topical and injected forms all reduced melasma scores, with no clear difference between routes.
Zhang et al., BioMed Res Int, 2018Studies / adults
Effective alone and as an add-on; side effects generally minor.
Kim et al., Acta Derm Venereol, 2017Relapse with combination
Oral TXA plus triple cream vs cream alone; 4 RCTs, 480 patients.
Gonçalves et al., Clin Exp Dermatol, 2024Lighter periods
Reported in women on oral TXA in one included study.
Kim et al., 2017Traveling to Seoul
Tranexamic acid therapy in Seoul for international patients
Visitors often ask about tranexamic acid while in Seoul. A single visit is enough for diagnosis, screening and a written plan, but the course itself runs for months, so continuity at home is part of the decision. Hommage Women's Clinic is in Gangnam, a short walk from Sinnonhyeon Station (Line 9 and Shinbundang Line).
Before you travel
- Bring your passport, a full medicine list including contraception or hormone therapy, and any history of clots, stroke or migraine.
- Check whether tranexamic acid for melasma can be continued or prescribed in your home country; rules and availability vary.
- Long flights add to clot risk; tell the doctor your travel dates so timing can be planned, and stay hydrated and move during the flight.
- Send questions and preferred dates by WhatsApp, KakaoTalk or the contact form before you arrive.
Hommage · Seoul
Hommage Women's Clinic · Gangnam, Seoul
Seoul: the clinic is in Gangnam, a short walk from Sinnonhyeon Station. Illustrative photo.
Hommage · Gangnam
Hommage Women's Clinic · Gangnam, Seoul
You receive a written plan, including when the course will end. Illustrative photo.
Choosing well
How to choose a clinic for tranexamic acid therapy
Tranexamic acid is a prescription medicine, so the quality of screening matters more than the product. Use these questions at any consultation, including ours:
- Is melasma diagnosed by a doctor first? Tranexamic acid is not a general skin whitener.
- Is clot risk screened every time? Including contraception, smoking and migraine history.
- Is the dose and length of the course clear? With a planned end date and review visits.
- Is it combined with sunscreen and creams? The evidence is strongest for combined plans.
- Who do I contact about side effects? You should know before you start.
What affects tranexamic acid therapy cost?
Cost depends on the form (tablets, topical products or in-clinic microinjections), the length of the course, the number of review visits and whether it is combined withlaser toningor peels. Tranexamic acid for skin pigmentation is usually treated as cosmetic care and is not covered by National Health Insurance; you receive a written quote first.
Your visit
What to expect when starting tranexamic acid
01
Diagnosis
Dr. Hwang confirms melasma under magnification and checks for other pigment that needs a different approach.
02
Safety screening
You are asked about past clots, stroke, migraine, smoking, kidney health, pregnancy plans, the pill and hormone therapy.
03
Your plan
You receive a plan combining tranexamic acid with sunscreen and topical care, plus written instructions.
04
Follow-up
Progress and side effects are reviewed, usually every 4–8 weeks, and the course is adjusted or tapered.
Your doctor
Dr. Hwang Seonhwa
Physician · Skin & Aesthetic Treatments
Dr. Hwang prescribes tranexamic acid only after a clot-risk and hormone review, uses it alongside sun protection and topical care rather than on its own, and plans a clear end point and maintenance step for each course.
Physician for face and skin procedures, including lifting, laser and skin-improvement treatments, planned around facial proportions and skin condition.
Tranexamic acid: frequently asked questions
Is tranexamic acid safe for melasma?
For people without clotting risk factors, low-dose tranexamic acid has been well tolerated in clinical studies, with mostly mild side effects such as stomach upset and lighter periods. It is not suitable for everyone, because it can increase clot risk in people who already have risk factors. A doctor's screening before prescription is essential.
How long does tranexamic acid take to work for melasma?
Most people see gradual lightening after 4–8 weeks of consistent use, with clearer improvement by about 3 months. Oral courses usually last 3–6 months. Results depend on daily sunscreen use and combining it with topical treatment, and melasma can return after stopping.
Can I take tranexamic acid with the birth control pill?
This needs a careful discussion. Combined pills containing estrogen raise clot risk on their own, and many doctors avoid combining them with oral tranexamic acid, especially if you smoke, have migraine with aura or other risk factors. Topical forms or a different contraceptive may be options. Bring your pill packet to your appointment.
Does tranexamic acid affect my period?
It can. Tranexamic acid is also a treatment for heavy menstrual bleeding, so some people notice lighter or shorter periods while taking it. Periods usually return to normal after stopping. Tell your doctor if your cycle changes significantly or you miss a period, so pregnancy can be ruled out.
Can I use tranexamic acid during pregnancy or breastfeeding?
Oral tranexamic acid for melasma is not used during pregnancy or while trying to conceive. Pregnancy-related melasma often fades after delivery, and sun protection is the main approach until then. If you are breastfeeding, discuss timing with your doctor; cosmetic courses are usually postponed.
Can foreigners get tranexamic acid therapy in Seoul?
Yes. International visitors and foreign residents can have a consultation at Hommage Clinic; bring your passport and a list of all medications, including contraception. Because treatment runs for months, plan how you will continue care at home. Contact us before your visit to arrange language support and book an appointment.
What dose of tranexamic acid is used for melasma?
Much lower than for heavy periods. Most melasma studies used 250 mg twice a day by mouth, usually for about 12 weeks. Your doctor sets the dose and length of the course after screening; do not start or change the dose yourself.
Is oral or topical tranexamic acid better?
A 2018 meta-analysis of 21 studies found that oral, topical and injected forms all reduced melasma scores when used alone, without a clear difference between them. Oral treatment is the most studied for moderate to widespread melasma; topical forms suit people who cannot take tablets.
Will melasma come back after I stop tranexamic acid?
It often can, because melasma is chronic. Combining tranexamic acid with a triple-combination cream lowered relapse in a 2024 meta-analysis, and daily tinted sunscreen and topical maintenance help keep results after the tablets stop.
Can tranexamic acid be combined with laser toning?
Yes. Tranexamic acid is often used alongside gentle laser toning, which may help reduce irritation-related darkening. A 2022 systematic review found combining toning with other treatments, including oral tranexamic acid, generally reduced side effects.
Does tranexamic acid whiten normal skin?
No. Tranexamic acid calms the signals that overstimulate pigment cells in melasma; it is not a general skin whitener and is not prescribed to lighten normal skin tone. For overall dullness, other approaches such as skin tone evenness therapy are more appropriate.
What are warning signs to stop tranexamic acid?
Stop the tablets and seek urgent care for leg pain or swelling, sudden shortness of breath, chest pain, or sudden weakness, numbness or difficulty speaking. Contact the clinic for a rash, persistent stomach upset, a missed period or any other new symptom.
Can I fly while taking tranexamic acid?
Tell your doctor your travel dates. Long flights raise clot risk on their own, so timing may be adjusted. During the flight, drink water, walk the aisle and flex your ankles, and seek care for leg swelling or breathlessness after landing.
References
Sources used for this page, reviewed by Dr. Hwang Seonhwa. Read our editorial and medical review policy.
- Zhang L, Tan WQ, Fang QQ, et al. Tranexamic acid for adults with melasma: a systematic review and meta-analysis. BioMed Res Int. 2018;2018:1683414. PMC
- Kim HJ, Moon SH, Cho SH, Lee JD, Kim HS. Efficacy and safety of tranexamic acid in melasma: a meta-analysis and systematic review. Acta Derm Venereol. 2017;97(7). PubMed
- Gonçalves OR, et al. Oral tranexamic acid combined with triple combination cream for melasma: systematic review and meta-analysis of randomized controlled trials. Clin Exp Dermatol. 2024.
- Lee YS, Lee YJ, Lee JM, Han TY, Lee JH, Choi JE. The low-fluence Q-switched Nd:YAG laser treatment for melasma: a systematic review. Medicina. 2022;58(7):936. PMC
This page is general information and does not replace a personal consultation. Illustrations are original works of Hommage Women's Clinic, Gangnam, Seoul; photos marked illustrative are not of patients.
Related melasma and hormonal care
Melasma Treatment
A long-term plan for hormonal, relapsing brown patches on the cheeks and forehead.
Laser Toning
Low-energy 1064 nm laser sessions used carefully as part of melasma care.
Skin Tone Evenness Therapy
A combined plan for blotchy, dull or uneven skin tone.
Skin Care for Hormonal Changes
How pregnancy, the pill and menopause affect pigment, acne and skin.
Birth Control
Contraceptive options, including choices to discuss if the pill triggers melasma.
Glutathione Injection
What glutathione can and cannot do for skin brightness, and its safety limits.
Find out if tranexamic acid is right for your melasma
Book a consultation with Dr. Hwang Seonhwa in Gangnam for a melasma diagnosis and a safety review before starting tranexamic acid.
Hommage Clinic · 4F, Building A, 509 Gangnam-daero, Seoul (near Sinnonhyeon Station) · Mon & Fri 10:00–20:00 · Tue–Thu 10:00–19:00 · Sat 10:00–15:00