How do you adjust the frequency of your melasma skin booster?

I have been consistently receiving laser toning treatments for a long time. Just when I thought my freckles were fading, they start creeping back in if I neglect my care even a little, and it is really exhausting.

So this time, with the intention of improving the inside rather than the outside, I was recommended a skin booster that is good for pigmentation. I have high expectations because it is said to suppress melanin by directly nourishing the skin from within, so it feels like a fundamental solution.

However, since it is so expensive, I think the maintenance period and the correct interval are very important.

I am wondering how often I should set the frequency for this type of special-purpose injection, specifically for melasma skin boosters, to maximize the effect.

I'm not sure if I need to get injections consistently once a month, or if it's okay to get them intensely about three times and then take a break. I would like to borrow the wisdom of those with experience on how to structure a routine to ensure it is cost-effective.

If anyone has seen their skin become noticeably clearer after using this in conjunction with toning, please share your advice. I want to quickly escape this dreadful hell of blemishes and fully enjoy the perfect melasma skin booster effects.