Is there really a way to remove freckles?

I think it's been over ten years, but I've had laser treatments at Lee Ji-ham Dermatology.

I think the doctor said back then that freckles can be removed, but melasma cannot.

So, since there is nothing I can do about the melasma that has already formed, I am currently using a cream that prevents hyperpigmentation to try and keep it from flare-ups, but

My melasma hasn't gotten worse, so it must be having at least a slight effect, right?

Some people say that their melasma faded after applying something like a Vitamin C serum, but I'm curious if that is actually realistically possible.