What is the difference between a melasma skin booster and whitening care?

I am leaving an inquiry because I am curious about the difference between a melasma skin booster and regular whitening treatments.

My skin tone is dull and I have melasma on my cheekbones, so I'm looking into treatments. There are whitening treatments, melasma skin boosters, and lasers, so I'm really confused about where to start lol.

I'm not sure if my pigmentation is deep or shallow, and my biggest concern is that my face doesn't look clear even when I apply makeup. Do regular whitening treatments feel more focused on surface care, while melasma skin boosters seem to be closer to improving the skin's internal condition or regeneration?

I am also curious if whitening treatments alone are often insufficient for skin with melasma. If I receive a consultation for a melasma skin booster, I would like to know if you can determine the right approach—laser, skin boosters, or other treatments—based on the condition of my melasma. Since this is my first time, I want to start with accurate knowledge rather than just mixing and matching treatments. I am asking for help from those who have already received these treatments!!