Redness - Will it improve if I strengthen my skin barrier?

There might be seasonal changes, but...

I get flushed from the temperature...

In the summer, my cheeks turn red because it's hot...

My cheeks turn red in the winter because it's cold and I turn on the heater a lot.

Does the redness improve a lot if the skin barrier becomes a bit stronger?

I read somewhere that the skin barrier is important...

I did wonder if it mattered...

Is there anyone who says their skin improved after strengthening their skin barrier?

What products or foods can strengthen the skin barrier?