Concerns about dry and dull skin

hello!

Recently, I have been concerned about my skin becoming increasingly dry and dull.

I didn't have any major issues originally, but lately my skin has become very dry and rough,

I'm really worried because my makeup isn't applying well.

Especially when I wake up in the morning, my skin feels saggy, and it seems like I have a lot of dead skin cells.

Also, since it seems to be getting worse now due to the change of seasons, I get worried as winter approaches.

I do apply moisturizer or essence, but it doesn't seem to be very effective, and I'm not sure which product would be good.

Do you happen to know of any ways to improve dry and dull skin, or any products you would recommend?

thank you!