The gel is formulated to produce similar results as in-office cosmetic procedures, including tightening saggy skin, smoothing fine lines, reducing puffy bags, and brightening dark circles. After using a face moisturizer, I took a small amount and warmed it up between my fingers for five seconds, as advised by the brand, then gently dabbed it across each of my under-eye circles. The area appeared red at first, but after a minute, I felt it drying and noticed the circles had lightened, and the skin felt physically tighter and smooth to the touch once it was fully dry.