Moisturizer.

"Brands like Eucerin make really great fragrance-free gentle moisturizers that are perfect for this time of year. Sometimes your skin just needs that extra TLC, you know, maybe you got some dry flakes, maybe you got some eczema patches. You can put your moisturizer on and put an occlusive on top of that as well, so it's almost like a whole moisture hydration sandwich where you got the hydration from the damp skin and you lock it in with the moisturizer and the occlusive."

"To date, I only know that this ingredient is in Eucerin. They, in fact, patented it. The one that I know of does have fragrance, so if you're sensitive to fragrance, that's definitely something to note. Maybe hold out for a fragrance-free version. But if you're not, this might be something that you want to incorporate into your routine, especially if you need to take a holiday from hydroquinone or if you're just looking for something that is proven to be equally effective without the known side effects. It's a very exciting ingredient and it just may be the hydroquinone alternative we've all been waiting for with far less side effects."