If you have treated your melasma, watched it fade, and then seen it creep back, you are not doing anything wrong, and you are certainly not alone. Melasma coming back is the single most common frustration I hear about it. In almost every case, the relapse comes down to one of three things.
1. The treatment removed the pigment but not the cause
This is the big one. Melasma is not just pigment sitting in the skin. It is driven by underlying factors: inflammation, an increased blood supply feeding the pigment cells, and overactive melanocytes that are primed to switch back on.
A treatment that only lifts the visible pigment off the surface, without addressing what is driving it, is treating the symptom and leaving the engine running. The colour clears for a while, then the same active, well-supplied cells simply produce it again. Lasting control comes from calming those drivers, not just clearing the stain they leave behind. This is why melasma responds far better to a layered approach than to a single pigment-removing treatment. (This is covered in more detail in how we treat melasma.)
2. No tyrosinase inhibitor was used
Tyrosinase is the enzyme your skin uses to make pigment. Tyrosinase inhibitors are topical treatments that slow that enzyme down, reducing pigment production at its source.
If your plan did not include one, or you stopped using it once the skin looked clear, you took away one of the main things keeping the pigment cells quiet. The melanocytes in melasma are always primed to restart, and without ongoing suppression they often do. These treatments are part of keeping melasma controlled, not just clearing it once.
3. Sun protection was not strong enough
Ultraviolet light is one of the most powerful triggers of melasma there is. It directly stimulates the pigment cells, and it undoes treatment quickly.
Occasional or low-factor sun protection is not enough for melasma-prone skin. It needs high-factor, broad-spectrum protection, applied properly and reapplied through the day, every day, not only in summer and not only when it is sunny. This is the single most important thing you can do yourself to stop melasma returning, and it is also the most commonly underdone. Many relapses are, in truth, sun relapses.
"Melasma does not come back because treatment failed. It comes back because the pigment was removed while the things driving it were left in place."
- Dr Rob Humphries, Clinical Director
Keeping it controlled
The reality is that melasma is a condition to manage rather than cure. The tendency stays with you, so the aim is long-term control: treat the drivers rather than only the pigment, keep the pigment cells suppressed with the right topical treatment, and protect from the sun properly and consistently. Do those three things and melasma need not keep returning. Skip any one of them and it usually will.
Frequently asked questions
Why does my melasma keep coming back after treatment?
Usually because the treatment removed the visible pigment without addressing what drives it, because no tyrosinase inhibitor was used to keep pigment production suppressed, or because sun protection was not strong or consistent enough.
Can melasma be cured permanently?
Melasma is managed rather than permanently cured. The underlying tendency remains, so keeping it clear relies on treating the causes, ongoing pigment suppression, and consistent high-factor sun protection.
Does sunscreen really make a difference for melasma?
Yes, a large one. Ultraviolet light is a powerful melasma trigger, and inconsistent or low-factor protection is one of the most common reasons it returns. Daily, high-factor, broad-spectrum protection is essential. A tinted mineral SPF works best, and ensure it is SPF50.
How can I treat my Melasma?
ProYellow laser is the cornerstone of treatment - it works by downregulating the pigment producing cells and inflammation that drives the melasma. We can then use a fractional laser on safe settings to remove pigment from the epidermis. A tyrosinase inhibitor such as hydroquinone should be used to maximise results and minimise recurrence. Read more about the treatment rational here.
Book a consultation
If your melasma keeps returning, the plan probably needs to address the cause rather than just the pigment. Consultations are available at Aion Labs in London.
