via POPSUGAR

This inexpensive product does it all. 

Before Meghan Markle was engaged to the dapper red-headed royal, Prince Harry, she was an actress in the hit show, Suits; a lifestyle blogger with her site, The Tig; and a global ambassador for World Vision Canada and women’s advocate for the U.N. So, needless to say, she’s done her fair share of jet-setting from place to place for her work and passions, and we find it quite intriguing that her glowing complexion withstands those countless hours in cold, dry airplane cabins.

Traveling can be taxing on your health, both for your skin and immune system. Packed tight in a confined space with a bevy of strangers isn’t an ideal spot to hang out when it comes to being exposed to unwelcome germ and bacteria encounters, making it especially hard over the holidays to arrive bright-eyed and bushy-tailed on the front door of your in-laws. Not to mention, you don’t want to be nursing the sniffles or hiding a mounting face blemish at the morning meeting after returning from yet another business trip. It seems unavoidable, yet we’re determined to find a way this year (that isn’t a human-sized humidified bubble to cut us off from those mouth-breathing, stuffy-nosed seat neighbors).

That’s when the happy occasion of Prince Harry and Meghan Markle’s royal engagement gave us a light at the end of the tunnel. It had us coveting the bride-to-be’s beauty routine not just because she’s about to become a Duchess, but because she’s absolutely stunning. Whatever she’s doing—hair, skin, nails, or wardrobe—it’s working; and we were leaning in hard.

Amidst this very serious research, we found an Allure interview with Markle that delved into her best beauty tips, including her must-have travel product she never boards an airplane without. It’s natural, it’s versatile, it’s cheap—it’s tea tree oil.

Markle stated: “The one thing that I cannot live without when I'm traveling is a small container of tea tree oil. It's not the most glamorous thing, but if you get a cut, a mosquito bite, a small breakout, no matter what it is, it's my little cure-all.”

Tea tree oil is an essential oil that acts as an antiseptic, meaning it helps keep germs at bay. For instance, many savvy travelers will rub a small amount of tea tree oil around their nostrils while on a flight to keep germs from entering the sinuses. It’s also great to have on hand to soothe and disinfect a small cut or bug bite. We were already privy to the fact that it makes for a great spot treatment for face blemishes, but for some reason didn’t think it would be smart to travel with? Trust us, we’ve learned our lesson. It’s not often you find a product that can cover so many health-centered bases, and we’re confident that our post-flight skin and immune system will thank us for it.

You can buy a small (TSA-approved) bottle of pure tea tree oil for about $7 on Amazon, making this do-it-all travel product a bargain buy, too. (Talk about a cherry on top!)

WATCH: Prince Harry Is Engaged to Meghan Markle

We’re making sure to snag a bottle of tea tree oil for our holiday travels this year. Thank you, Prince Harry, for proposing—because now we have our next skincare hack on standby.