Please tell me how to restore the skin barrier.

I've been feeling like my skin has become unusually sensitive lately.
Even products that were usually fine felt harsh.

I looked it up and found this symptom Skin barrier recovery They said this was a necessary condition.
It's not something that can be solved just by moisturizing.
The ingredients should also be adjusted to be as mild as possible. Skin barrier recovery They say it helps

So these days, reduce stimulation,
I'm trying to keep the basic steps as simple as possible.
Skin barrier recovery Please tell me a quick way