RODAN+FIELDS Plumping Lip Oil provides skincare for your lips. Formulated with peptides, hyaluronic acid, and vitamins C and F, this lip oil works to fill in lines and boost the lip's moisture barrier. Sunflower seed oil and SPF 28 contribute further by protecting the lips while enhancing lip definition. This lip oil gives fuller-looking lips instantly and over time, so it is both a cosmetic and skincare product.