How often should I get a melasma skin booster near City Hall Station?

How often should I get melasma skin boosters? Hello. I am currently coordinating an appointment for a nutrient injection to erase the patchy blemishes on my cheeks, but I am asking this question due to scheduling conflicts. I have heard that melasma skin booster treatments are not a one-time thing; they must be repeated at regular intervals to strengthen the skin barrier and maximize the whitening effect. I am curious about the most recommended re-treatment interval for melasma skin boosters. Specifically, I am wondering if I need to inject the solution at least three times consecutively at intervals of 2 or 4 weeks for cell regeneration to occur from the basal layer of the skin and push the pigments away. I feel I need to plan my schedule in advance so that I can attend treatments without interfering with my work life, so I respectfully ask for advice from those with experience regarding the frequency of regular visits.