DuWop, “Private Red” ($22, Sephora) The promise: Key ingredient henna will leave behind a long-lasting stain. The reality: Cheaters beware! If you’re springing for this sticky stuff, your fling will be sealed — and revealed — with a rosy kiss. 1 kiss Caitlin Thorne Hersey
2 of 5
MAC Pro Longwear, “Lasting Lust” ($21, Henri Bendel) The promise: Scientifically proven to last eight hours with no feathering The reality: Wow! The best and the brightest stays on even when you want it off. After lots of kissing and a good night sleep, my lips are still tainted, but my guy’s cheek — and my pillow — weren’t. 4 kisses Caitlin Thorne Hersey
3 of 5
Stila Lip and Cheek Stain, “Cherry Crush” ($24, Sephora) The promise: Won’t sweat off, no matter how hot it gets outside (or, we presume, inside). The reality: You’ll get away with being an undercover lover with this lip stain. Put it on with conviction — cause it ain’t comin’ off. 4 kisses Caitlin Thorne Hersey
4 of 5
Rimmel London Lasting Finish Kiss & Stay lip gloss, brick color ($8, drugstores) The promise: Will stay put through even the steamiest make-out sessions — or up to 10 hours The reality: This two-part lipstick (color base, followed by sparkly gloss) has a split personality. When smooching, the gloss comes off, but the color stays put on your pout. 2 kisses Caitlin Thorne Hersey
5 of 5
L’Oréal Paris Infallible lipstick, cerise ($12, drugstores) The promise: A set of color and gloss with 16-hour lip color The reality: In action, it leaves a glossy lip outline on your lover that’s not easy to spot. 3 kisses Caitlin Thorne Hersey
