RMS Beauty Lipnights Overnight Lip Mask is an ultimate dew-it-all gloss has taken over the night shift.. Get the dreamiest lips—overnight. An ultra-nourishing, overnight treatment balm that deeply hydrates, soothes, smooths, and subtly volumizes lips while you sleep.. Infused with soothing botanical butters, Vitamin C-rich Kakadu Plum Seed Oil, and plumping Peptides & Pomegranate Extract, this moisturizing lip mask melts into lips providing intense 24hr hydration, antioxidant defense, and barrier repair. Wake up to noticeably softer, smoother, healthier-looking lips.