What is the best skin barrier care product that is essential for winter?

How are you all maintaining your skin condition in these dry times? I just had a quick lunch and went to Honkono to relieve some stress. Even while singing a few songs, my face felt like it was going to split because of the indoor heater...ㅠㅠ I sang happily, but when I looked in the mirror, I was shocked at how dry my skin was. Especially in times like these, I absolutely need at least one reliable skin barrier care product. I'm curious to know what you all prefer! I'm about to get back to work, but my computer update just won't finish, so I'm just sitting there blankly, feeling frustrated, so I'm posting this. LOL. Before, I used to be fine with just lotion, but maybe because it's winter, my skin texture is a mess and it keeps itching. I think my skin barrier has collapsed. Do you have any skin barrier care products that have proven effective? Something with good ingredients and good for internal dryness would be great, but please share some information about skin barrier care products that are rumored to strengthen the skin barrier! I want to find a staple before it's too late!!