It seems like lack of sleep has a really big impact on dull skin.

I haven't been able to sleep properly for a few days, so I can feel my face has gotten really dull.

Even with the same makeup, my face looks lifeless and my under-eyes appear dark. I used to think that simply changing my skincare products would be enough, but now that my skincare routine is compromised, it seems like applying products doesn't make much of a difference.

It seems skin condition is really connected to lifestyle habits. What do you all take care of first when your skin looks dull? I'm curious if it's sleep or moisturizing.