This might be one of the oldest tricks in the book but it's one to keep on file, says Ariana Grande's makeup artist, Daniel Chinchilla. It's not as simple as it sounds to pull off, so it's best to start slow. He suggests selecting a lip liner that's slightly darker than your natural lip line. "MAC Lip Pencil in Stripdown, $17.50, is a good color on most lighter complexions," he says. "If you have a deeper complexion, try the color Cork."

Next, line the outside of your lip and fill in the rest of your lip with the pencil. Take a lighter lipstick (his go-to is Wet n Wild MegaLast Lip Color in Bare It All, $2.67, and try your hardest to stay in the center of the lips so that the outer part is slightly darker. "You want a slight contrast to give the illusion of fuller lips," he says.

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The two-in-one lip look is not only trendy, but it's also a quick fix for enhancing your pout when you use a lighter and darker shade. To make this look your own, LaMarsh suggests starting with the darker lipstick from the inside corners of the mouth to the center of the lips. Next, apply the lighter of the two lipsticks to the center of your lips. "Darker colors appear farther away and lighter colors appear closer, so this optical illusion makes your lips appear larger and poutier," she says. Make sure the lipsticks complement each other and are close in shade. She loves using Anastasia Beverly Hills Matte Lipstick in Honey, $18, for the center and Staunch for the outside corners.

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Once you apply your lip color, a little added concealer in the areas surrounding the lipstick and lip liner can help draw out the color, add volume and make the lips look fuller in a flash. For this technique, Scrivo uses a lightweight concealer one subtle shade lighter than the actual skin tone. Look for a tip applicator that is easy to use around the lips, such as Wander Beauty Dualist Matte and Illuminating Concealer, $29. This draws more attention to your lip area. "Apply over the lip line and then use a nude lip liner on the outer edges, slightly drawing outside of the lip line, to create the illusion of a fuller lip," she adds. "Fill in with lipstick and a gold, shimmery gloss, like Burberry Kisses Gloss in Gold Shimmer, $29, in the center for maximum effect."

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One of LaMarsh's favorite tricks for making lips appear larger is by throwing in a little bit of pearlescent lip color into the center of the lips, over a matte or flat-colored lipstick. "The reflective properties of the lipstick in the center of the lips makes your lips quickly look fuller," she explains. "The 3D effect of this trick is really eye-catching." To rock this at home or out on the town, apply a matte lip shade all over your lips as a base. Then, using a lip brush, apply the shimmery lip color, like Chantecaille Brilliant Gloss in Classic, $36, to the center of both the bottom and top lips. Blend the edges into the first lipstick for a more dramatic effect. Check out LaMarsh's Youtube video showing her pulling off this look.

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Lip plumpers have been around for decades. In fact, they first made headway in the 90s, though the products weren't very effective. Thankfully, much has changed and the lip plumpers of today are made with ingredients that are clinically proven to produce real results and fast. Scrivo's go-to is Derma MD Glamur Lip Plumper, $29.95, which is an all-in-one lip care treatment that creates a plump pout in minutes. "I use it on every one of my clients because it not only really works but it's loaded with nutrients that are excellent for the skin and lips, such as vitamin B3 and smoothing peptides that treat signs of aging."