If you’re a Gossip Girl fan, you can’t help but notice how electrifying Jessica Szohr’s eyes are. I always assumed her intense eyes were the result of good genes, but it turns out she relies on three products to enhance her blue-green eyes.

Her makeup artist, Tina Turnbow, gave Glamour magazine the secret liner combination she uses to enhance Jessica’s intense gaze. She mixes emerald, navy and gray eyeliners–all from the drugstore!–to get the beautiful eye-opening effect that enhances all the colors in Jessica’s irises and makes her eyes really pop.

Here’s the recipe: “I love combining liners and blending them together- Maybelline Line Express Eyeliners rock! On Jessica, I use Blackened Sapphire, then layer Charcoal Gray on top, followed by Rimmel Soft Kohl Kajal Eye Liner Pencil in Green Shimmer on top at the inner corners.” You don’t have to have an HD TV to see that the results are downright stunning. Try Turnbow’s faves or just experiment with two colors you already have to get your own customized layered liner look.