Etude Ginger Sugar Lip Mask is really good.

Even if your lips are a total mess with dead skin cells, if you apply a generous amount before bed, the dead skin will completely slough off in the morning, leaving your lips moisturized.

The downside is that the texture is thick, so it feels a bit sticky, but it's bearable lol.

It was discontinued once and then re-released, but I'm scared it might be discontinued again. Please use it a lot. I want to prevent it from being discontinued.