Too Faced Lip Injection Extreme Lip Gloss is a day-and-night-use serum for lips that appears and feels smooth and soft from the first application of the clear gloss, with light-reflecting shine and supreme moisture. How do l use it: Apply over lip liner, lipstick, or on bare lips. A slight tingling sensation that can last up to five minutes is normal. From Too Faced. Includes: • 0.14-fl oz Lip Injection Extreme Lip Gloss