It turns out Jell-O — the jiggly, fruity gelatinous sweet that isn’t so much a treat — sounds much more appealing when you’re talking about skin care. Not to apply to your face, of course, but to emulate. Like glazed donut skin (another delicious-sounding trend), jello skin is all about embodying the food it’s named after — in this case, the bouncy, plump properties of Jell-O. (Editor’s note: Jell-O, the food, is a trademark, but when referring to the beauty trend we use lowercase.) Jello skin was first coined by beauty influencer Ava Lee, who posted a now-viral TikTok of herself getting a facial. In the video, the esthetician pinches…