What it is: A color-free primer base designed for wearing under lipstick to reduce feathering.What it does: It provides long-term hydration to skin while smoothing and refining the lips. It also improves the overall appearance of your lip products.How to use: Apply a thin coating over your entire lip area, including over your lip edges. Follow with lip color. If desired, line your lips. Oil-free; fragrance-free Dermatologist tested