Post-acne marks fade on their own. Sun spots can be treated and stay gone.
Melasma doesn't work that way.
It's a chronic condition driven by hormones and UV exposure, triggered by heat, sitting deeper than surface-level pigmentation.
You may have noticed it first during pregnancy, after starting birth control, or after years of sun exposure. Melasma works like a threshold once activated, it stays reactive.
This is why it often comes back even when treatment "worked." The pigment fades, but the trigger is still there.
A day at the beach, hormone changes, even heat from cooking can reactivate it.
Melasma doesn't get cured. It gets managed.
This isn't a limitation of Aerolase it's how melasma behaves with any treatment.