If you are asking why your pigmentation is not fading, the usual answer is that you are treating melasma without treating its triggers. Melasma is chronic and relapsing, so clearing it once is only half the job. This blog walks you through why facial pigmentation returns, what is quietly feeding it, and a specialist treatment plan that holds results instead of chasing them.
Why is my pigmentation not fading even though I’m treating it?
Most stubborn facial pigmentation that resists treatment is melasma, and melasma does not fade on willpower or a single course of cream. Three things keep it visible: an incomplete diagnosis, an untreated trigger such as sun or hormones, and the absence of a maintenance plan after the first improvement.
Melanin is made by melanocytes when the enzyme tyrosinase is switched on. In melasma those melanocytes are hyperactive and easily reactivated, so pigment that fades will return the moment the trigger comes back. This is also why a product that worked for a friend’s sunspot does nothing for your melasma. They are different conditions at different depths.
The other common reason is depth. Pigment sitting deep in the dermis clears slowly and incompletely, while surface pigment lightens faster. If a treatment was matched to the wrong depth, progress stalls and you conclude nothing works. Worth noting: across published studies, treatment improves melasma in a majority of patients, yet the same studies report relapse rates climbing past 60% within a year when nothing is done to maintain the result.
Why does melasma keep coming back after it clears?
Melasma relapses because the underlying tendency never leaves; treatment suppresses pigment, it does not delete the melanocytes that make it. Stop the active phase, remove the maintenance, and pigment production restarts. One controlled study found that effect from oral therapy disappeared within a month of stopping and returned to baseline by six months.
Maintenance changes that trajectory measurably. In a randomised study of 242 patients across Brazil and Mexico, 53% who continued a maintenance regimen after clearance stayed relapse-free at six months, with a median time to relapse of around 190 days. The patients who stopped abruptly saw pigment scores climb back toward baseline within months. The lesson is blunt: the maintenance phase is not optional aftercare, it is the treatment.
Singapore makes this harder than most places. With a daily UV index that the National Environment Agency records at 6 to 9 for most of the year, there is no low-sun season to give melanocytes a rest. That constant trigger is exactly why how melasma is managed here leans so heavily on year-round control rather than one-off clearance.
Do hormones make pigmentation return?
Yes. Hormonal shifts are one of the strongest drivers of melasma relapse, which is why it is often called the “mask of pregnancy.” Oestrogen and progesterone stimulate melanocytes directly, so pregnancy, the combined oral contraceptive pill, and hormone replacement therapy can all reignite pigment that had settled.
This is the trigger patients most often miss. Someone completes a successful course, starts or restarts the pill, and watches the cheeks darken again within weeks, blaming the treatment rather than the hormone. The pattern is consistent enough that reviewing hormonal medication is a standard part of a proper melasma history.
Hormonal melasma does not mean you must stop contraception. It means the decision should be made with a doctor who can weigh the options, because some women clear noticeably once a hormonal trigger is changed while others manage well by tightening photoprotection and maintenance instead. The point is that pigment driven by oestrogen will not respond durably to creams alone if the hormonal input keeps firing.
Why isn’t my sunscreen stopping the pigmentation?
Because standard sunscreen blocks ultraviolet light but lets visible light through, and visible light drives melasma. This is the single most overlooked reason pigmentation refuses to fade despite daily SPF. Research showed that short-wavelength visible light at 415 nm induces prolonged hyperpigmentation in skin, while longer wavelengths near 630 nm do not.
The fix is a tinted sunscreen containing iron oxides, which absorb visible light that mineral and chemical UV filters miss. In a randomised investigator-blinded trial, an iron oxide tinted sunscreen outperformed an untinted one with identical UV protection at keeping melasma stable over five months. Same SPF, different result, because of the tint. In pigmentation-prone skin the colour is therapeutic, not cosmetic.
This reframes a frustrating experience. Patients doing everything “right” with a high SPF still relapse because the screen was invisible to the wavelength actually triggering them. Add visible-light protection and protect against accumulated sun damage, and the same treatment that was failing often starts to hold. Photoprotection is not background advice in melasma. It is a primary therapy.
What does maintenance therapy actually involve, and is it forever?
Maintenance therapy is an ongoing, lower-intensity routine that suppresses new pigment after the active treatment clears the existing patches. It usually combines a topical tyrosinase inhibitor used intermittently, daily visible-light photoprotection, and trigger control, reviewed by a dermatologist rather than left to guesswork.
The “forever” question has an honest answer. For melasma, maintenance is long-term, because the tendency is chronic; Harvard Health Publishing notes that since no treatment is a cure, “prevention is the best option.” For a one-off sunspot or a single patch of post-inflammatory pigment, maintenance can taper once the skin is stable and the trigger removed. The two are managed on different timelines, which is why the plan starts with a correct diagnosis.
What maintenance is not is repeated aggressive lasering. Stacking laser sessions to force a chronic condition into submission risks thinning, mottled depigmentation, and rebound pigment. The cleaner approach is conservative active treatment, then a sustainable holding routine. If you want the detail of what an active course looks like before maintenance, a fuller treatment walkthrough sets out the sequence.
Does tranexamic acid help stubborn pigmentation?
Oral tranexamic acid is one of the better-evidenced options for stubborn and recurrent melasma, and it works on a different lever than skin-lightening creams. Originally an antifibrinolytic drug, it lowers plasmin activity and reduces the VEGF and inflammatory signalling that keep melasma’s melanocytes and blood vessels overactive.
The dosing is specific. A 2023 network meta-analysis of six randomised trials covering 599 patients found the optimal oral dose to be 750 mg per day for 12 weeks, with 250 mg twice daily a reasonable alternative for tolerability. An earlier study using 250 mg twice daily for six months reported good-to-excellent improvement in roughly 65% of patients.
Tranexamic acid is a prescription medicine, not a cosmetic add-on. It carries a clotting-risk profile, so a personal and family history screen comes before any prescription, and it is unsuitable for some patients. Used in the right person under supervision, it is one of the more reliable ways to bring a relapsing case under control, which is precisely why it belongs in a medical setting rather than a retail shelf.
Why did my pigmentation get worse after a treatment?
Pigmentation that darkens after a facial, peel, or laser is usually rebound: the treatment inflamed reactive skin and triggered fresh melanin. Melasma in Fitzpatrick III to V skin, the range covering most Singaporean faces, is especially heat- and inflammation-sensitive, so an aggressive setting can deepen the very patch it was meant to clear.
The mechanism is the same one behind post-inflammatory pigment. Excess energy or irritation prompts already-busy melanocytes to overproduce, and the result is darker, wider discolouration that can take months to settle. This is why a device that suits a stable sunspot can destabilise melasma in the same session.
Where this breaks down is treating stubborn hyperpigmentation as a problem to be blasted rather than calmed. Recurrent pigment responds to a measured plan: confirm the type and depth, start gently, protect against UV and visible light throughout, and escalate only if the skin tolerates it. Aggression is what causes the rebound in the first place.
Conclusion
Stubborn pigmentation is rarely a treatment that failed. It is a chronic condition, usually melasma, whose triggers kept firing after the visible pigment cleared: hormones, visible light that ordinary sunscreen ignores, and the absence of maintenance. Control those, and the same skin that would not respond starts to hold.
If your pigmentation keeps returning despite your best efforts, book a pigmentation assessment with Dr Ang Sue-May at Skincodes to confirm the type, identify your triggers, and build a maintenance plan suited to year-round Singapore sun.
Frequently asked questions
How long does it take for facial pigmentation to fade?
Surface pigment can lighten within 8 to 12 weeks of consistent treatment, while deeper or hormonal melasma often takes 3 to 6 months or longer. Post-inflammatory pigment frequently resolves on its own, though that can run from months to over a year, which is why early treatment shortens the timeline.
Can melasma be cured permanently?
No. Melasma is a chronic condition managed rather than cured, with recurrence rates exceeding 60% within a year when maintenance and sun protection stop. With ongoing photoprotection, intermittent topicals, and trigger control, most patients keep it stable. Dermatologists at Skincodes frame the goal as durable control, not a one-time fix.
Should I stop birth control if I have melasma?
Not without medical advice. The combined oral contraceptive pill can worsen melasma because oestrogen stimulates melanocytes, but stopping it is a decision to make with a doctor. Some women improve once the hormonal trigger changes; others do well by strengthening iron oxide photoprotection and maintenance instead.
Why is pigmentation harder to treat in Asian skin?
Melasma and post-inflammatory pigment concentrate in Fitzpatrick skin types III to V, common across Singaporean skin, because more reactive melanocytes respond strongly to UV, visible light, and inflammation. That reactivity also raises rebound risk, so treatment in darker skin is deliberately more conservative.