Please recommend an ampoule or essence that is good for removing freckles!

The sun is getting hotter, and perhaps because I've been working outdoors a lot and getting exposed to the sun...

I've started seeing small dark spots on my face.

I am reaching a point where I really need to get rid of my freckles, so I want to prevent them in advance.

I apply sunscreen consistently, so why do I still get freckles and blemishes? ㅠㅠ

Are there any specific habits needed to prevent melasma from forming?

Also, will this COSRX Advanced Vitamin 23 Serum be of great help in removing melasma?

If it helps with melasma removal, I want to keep using it!

Besides this product, are there any other good products for removing freckles?