Deep down, we're all creatures of habit, especially when it comes to makeup. We all have our preferred products or that one routine we would never waiver from. Despite their access to millions of cutting-edge products, makeup pros are in the same boat. They've got their own stash of favorites that they always have on hand! And we don't blame them. To get a better idea of what makes these makeup magicians tick, we decided to ask two of our fave artists what products they couldn't imagine living without. Check out the items they swear by!

There's a reason this little number is a best seller. Just ask Emily Oliver, Celebrity Makeup Artist and L'Oréal Educator. "This is hands down the best foundation," says Oliver. "The fact that it's lightweight, has buildable coverage and a high performer makes it a must-have for me! Photographers thank me for using it on the models/actors/clients, as it makes skin appear to be photoshopped."

Not only does this mascara bring the drama, it also nourishes your lashes and strengthens them with each application. "This is my go-to for celebrity-inspired makeovers, as it applies so smoothly, builds quickly and delivers perfect red carpet lashes," says Oliver. "And, with added B-5 nutrients, my eyelashes look and feel better after I've used this mascara."

This isn't any ordinary concealer. No, this high-tech formula blurs blemishes, dark circles and any other imperfections. "This is a great product for prepping the eyes (I use it as an eye shadow base) and for concealing," says Oliver. "This tiny tube packs a huge punch for covering dark circles and blemishes - I use it on every client. Light reflection technology directs light away from imperfections, making it one of my secret weapons on set!"

4. Kiehl's Creme De Corps Light-Weight Body Lotion

Just because it doesn't go on the face, doesn't mean this lotion isn't important. "When it comes to photoshoots and red carpet events, the body is just as important as the face, which is why I love this lotion," explains Oliver. "It's a total must-have as it smoothes and hydrates the skin, making it feel soft and supple. It also absorbs quickly, eliminating ashy, patchy and dry skin immediately!"

5. Yves Saint Laurent Touche Éclat

The rumors you heard are true. This highlighter is all that and so much more. "This is my favorite product of all time," says Dell Ashley, Yves Saint Laurent Director of Makeup Artistry. " It's the perfect highlighter that never creases and it lends a finished/perfected look to any complexion."

6. Shu Uemura Eyelash Curler

A good eyelash curler is like a good pair of Spanx. While you can certainly live without it, you'd never really want to. "A good eyelash curler is an essential instrument for every makeup artist," explains Ashley. "It opens the eyes and intensifies lash length and volume."

Every artist needs a good paintbrush to create a masterpiece. The same is true with makeup. "I can only create a flawless complexion by using a brush," says Ashley. "I have tried to create the same effect with my fingers or a sponge and it never turns out the way I want."