It's small enough to fit in your carry-on bag.
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Keira Knightley beauty
Credit: David M. Benett/Getty Images

As an actress, Keira Knightley often finds herself on a plane to different locations to film or events to attend.

The jet-setting life of an acclaimed actress doesn't come without its downfalls. Whether it's traveling to Derbyshire, England, to film Pride & Prejudice or to the southern Caribbean to film Pirates of the Caribbean, Knightley told Vogue it's often difficult to keep up with her usual skincare routine while on the move.

But, the actress, whose flawless complexion has helped her book Chanel campaigns, has found a solution.

"I completely fail to keep myself on an even keel with my skincare when traveling, but I have just discovered rosehip oil, which a friend of mine recommended," Knightley told Vogue in an interview published Monday. "Flights are so hard on your skin and they make it so dry, so I gave this a go and it really worked. Now I always travel with it."

Knightley is not alone. Rosehip oil has been hailed as a beauty product that helps moisturize, brighten and smooth out skin. In recent years, other beauty icons like model Miranda Kerr have pointed to the beauty product as the key to their skincare routine. For Kerr, rosehip oil helped prevent stretch marks during her pregnancy and she regularly applies it on her face before she goes to bed each night.

Also referred to as rosehip seed oil, the natural product also has been credited with lightening dark circles under your eyes. (That's, perhaps, a major necessity after a long red-eye.) And, luckily for travelers, it comes in bottles that are small enough to fit in your carry-on bag.

The oil is just one of several beauty tips shared by celebrities and models. In 2016, model Lily Aldridge told Travel + Leisure that water bottle sprays, face masks and lip balm are essential for her beauty routine while on a flight. And Kerr told Well + Good taking off your make-up before a flight and drinking a lot of water during it is key.