How should I manage my skin barrier?

hello.

I am concerned because I can definitely feel my skin becoming rough, easily reddened, and sensitive lately. I am even more worried because, along with the loss of elasticity, the dryness deep within my skin seems to be getting worse.

No matter how good the cosmetics I use are, it feels like the effect is only temporary, so I feel that skin barrier care is urgent. Are there any of you with similar concerns who have any tips or product recommendations for effective skin barrier care?

I would appreciate your advice on any special skin barrier care routines or dermatological procedures specifically suited for middle-aged women. I really want to achieve healthy and firm skin.