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Whether you’re a frequent flier or only take to the skies occasionally, you’ve probably noticed that air travel can do a number on your skin and hair—especially if you throw jet lag or switching climates into the mix. Because about half the air inside the plane is pulled from the atmosphere, in-cabin air has little moisture once the plane reaches higher altitudes, making our bodies prone to dehydration—and that can be felt even more intensely on mature hair and skin that already tends to be dry.

But as any flight attendant will tell you, there are ways to combat this dehydration before, during, and after your flight. So we asked Connie Watson, a Delta flight attendant who’s been flying for 25 years, exactly how she keeps her mature skin and hair from drying out on even the longest international flights.

Editor’s note: The below product picks were selected by our team based on Watson’s recommendations. 

1. SPF-infused lotion and foundation

Before heading to the airport, Watson always applies an SPF lotion topped by an SPF foundation. “It’s critical because of all the different climates we travel to,” she says.

Watson favors a lightweight, non-greasy SPF lotion with niacinamide (a derm-loved ingredient that helps retain moisture and also protects skin from environmental factors like pollution and weather), like Glow Recipe’s Watermelon Glow Niacinamide Sunscreen SPF 50 ($35) layered under a long-lasting SPF foundation, like the Estée Lauder Futurist Hydra Rescue Moisturizing Foundation SPF 45 ($45) that will hold up during travel. “I’ll switch from a lightweight foundation in the warm weather to a creamier formula in the winter,” for added moisture, Watson says.