What is the extent of the effect of dual toning?

These days, it feels like my face is completely covered by yellow dust and fine dust.

It seems like I used to block a lot of ultraviolet rays even with just a mask^^

The sky without yellow dust and fine dust is truly high, and the sun is also beautiful.

So beautiful that I went out without a mask in a ruthless state, ㅠㅠ

Freckles and dark spots have suddenly become very prominent.

I tried applying creams that are said to be good for freckles and dark spots, but my skin...

Maybe because it's thin, it appears red and raised.

It seems like my pores have also become wider...

I don't think I can get through this summer like this...

Can dual toning remove melasma, freckles, and blemishes?

How long does it take to see visible effects?