By far one of Nicole Caroline Favorite Sheet mask for Brightening "tightening (hence the name!) contains Vitamin C for improving tone & texture, while the peptides and hyaluronic acid help to firm, Hydrate, and Hyaluronic Acid help to Firm, Hydrate and give your skin back it's bounce! (included in The Luxury Icing Set). It is designed to be used under the ice!! #notyouraveragesheetmask