Approximately how much does a melasma skin booster cost?

Approximately what is the price range for melasma skin boosters? Nice to meet you. I am an office worker seriously considering skin injection treatments to address the patchy pigmentation issues on my face, and I am curious about the cost. After searching through various online communities, I found that melasma skin booster products containing whitening and pigment-improving ingredients are very popular these days. I am thinking of touring some famous clinics in Gangnam, so I am asking this question to find out the average price range for a single injection of a melasma skin booster. I would like to get tips on whether there is a significant cost difference depending on the dosage, or how many sessions I should typically purchase as a package to get the best value for money. Since this is my first treatment, I am posting this to establish a baseline for the cost, so I would appreciate any advice from those who are knowledgeable.