Chemical peeling is a temporary cure to your skin problems. The same skin issue will surfaced again after some time because the problem lies with the deepest (aka root) of our skin. If you are looking at long term, tackle the root, not the surface
My mum did laser therapy for her pigmentation 1-2 years back, it did look lighter for a few months. Recently, we went for a skin care analysis, the deepest layer of the skin was actually damaged. Facial and facial products cant reach as deep to cure.. Anyway, it was a painful process.

Beauty comes from within....
Warmest regards
Mysha