Usually, pigmented lesions or spots that have been removed will not return after your laser treatments. However, there are various factors that can stimulate new hyperpigmentation e.g. exposure to UV, ageing, hormonal factors. Laser pigmentation removal treatments do not prevent new hyperpigmentation from occurring.

Does pigment return after laser?

It is possible for these treatments to last for several years, after which the pigmentation issues will return. Laser-based treatments can last for one to four years or more, while other treatments can last for several months to one year.

Can laser remove pigmentation permanently?

People usually prefer undergoing laser treatment for pigmentation because it's a permanent solution. Alexandrite 755nm is a kind of laser treatment for pigmentation removal which is a quick, gentle, and non-invasive treatment.