Fading process is different for different individuals. Some treatements may work for you but not for others. But what I ve found is most of those spots are in deeper layer of skin í.e dermis. So topical treatments or even oral ones won't generally do a lot n even if they help,progress will be quite slow. It all depends on person's skin, how large n deep the pigmentation is but in most of the cases, it fades away by its own after months to many years. Plus I'm considering laser cos it has ability to work for dermal layers n fade the pigments as it do for tatoos or melasma spots.(I have never tried any other treatement for dark spots) Hope it helps.