How much would a melasma skin booster cost if I am concerned about my skin tone?

I am leaving an inquiry because I am curious about the cost of a melasma skin booster based on skin tone concerns.

My whole face isn't exactly dark, but I have pigmentation on my cheekbones that looks like freckles, so my skin tone doesn't look even. Because of that, my face doesn't look clear in photos, and even when I wear makeup, it feels a bit dull haha.

I think I need a pigment laser, but my skin is dry and feels like my skin barrier has weakened lately, so I'm hesitant about getting intense treatment right away. Should I understand that melasma skin boosters aim to improve skin condition to make the overall complexion look less dull, rather than directly removing the melasma? I am also curious if the cost of melasma skin boosters varies significantly depending on the number of sessions, even if the goal is just to improve skin tone.

If I receive a consultation regarding melasma skin boosters, can I be advised on which should come first among laser treatments, whitening treatments, and skin boosters?