Is there a treatment that can completely remove facial pigmentation?

I'm someone who deeply worries about my dull complexion. In the past, even acne would subside quickly and leave little scarring, but now even the smallest breakout quickly leads to facial pigmentation. It's becoming increasingly difficult to cover up.

I would like to solve this facial pigmentation problem.

There are so many different types of treatments, I have no idea which laser would be right for my pigmentation depth.

Rather than simply brightening my skin tone, I'd like to improve deep-seated facial pigmentation. I'm curious about how many sessions are usually needed to achieve clearer skin.

I want to say goodbye to those annoying traces. I look forward to your valuable advice!