Will I be satisfied with the melasma skin booster considering the cost?

Hello! I'm feeling down because the dark spots on both my cheekbones seem to have gotten darker lately, perhaps because the spring sun has gotten so strong. ㅠㅠ In my 20s, I used to get compliments on my skin even without sunscreen, but now that I'm in my mid-30s, my skin is deteriorating in an instant. I even splurged on expensive luxury cosmetics known for whitening and diligently apply vitamin ampoules, but it seems like cosmetics absolutely cannot get rid of pigmentation that has already formed. I figured a dermatologist was the only answer, so I started looking into it and found out about the "Melasma Skin Booster" at Maypure. ㅎㅎ I'm interested because they say combining it with laser toning brightens the skin from within, but since it's an injection procedure, the price is a bit on the higher side, so I'm hesitating. I heard you need to get it consistently multiple times rather than just once, so I'm worried I might regret paying for it. I desperately need genuine reviews from those who have tried it to see if it really helps with clearing my skin tone. ㅠㅠ Is there a noticeable difference between getting laser treatment alone and getting the Melasma Skin Booster together? If the noticeable changes are worth the investment, I’d want to book an appointment tomorrow, haha. Please give me some tips on how you all take care of your skin!