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Shampoo hair rinse
Credit: Getty Images

The bellowing sound of a TSA agent repeating over and over again “no liquids more than 3.4 ounces” is forever burned in every frequent flier’s brain. And, because we simply must travel with our moisturizers, makeup, shampoo, and conditioner, we tend to get creative by stuffing our bags full of dozens of miniature bottles. But what if we told you there was a better way? At least, when it comes to your hair care.

Over the last few months, shampoo bars have become the It product among travelers, beauty gurus, and environmentalists alike. These little travel godsends are friendly to both your luscious locks and your suitcase thanks to the fact that they come in solid rather than liquid form. This means you can tell that TSA agent with pride that no, in fact, you aren’t carrying any liquids over the allotted amount.

And yes, to add icing to this already delicious packing cake, these shampoo bars are great for the environment, too.

In a viral video produced by ATTN, Lush Cosmetics, the leader in the shampoo bar movement, explained that its bars could one day replace the “552 million shampoo bottles we throw out annually.”

The Lush bars, which are the equivalent of three bottles of shampoo each, can last for up to 80 washes, so there will be no more running out of your favorite shampoo two days into your trip. And, once they're done they are gone forever — no plastic packaging included.

Check out the best shampoo bars to buy before your next trip below.

Lush Shampoo Bars

Shampoo Bar
Credit: Courtesy of LushUSA

With a variety of choices for every type of hair, including a few infused bars that come with added ingredients like argan oil and juniper, you can’t go wrong with Lush. You can even pick up a few solid conditioner bars to match your new shampoo.

To buy: lushusa.com, $12

ScrubblesBubbles Strawberry Shampoo Bar

Shampoo bars
Credit: Courtesy of Etsy

These homemade bars, which are made with cocoa butter and jojoba oil, will last you for up to 60 washes and will have you smelling like strawberries and cream all day long. What’s better than that?

​​​​​​​To buy: etsy.com, $9

Christophe Robin Hydrating Shampoo Bar

Shampoo Bar
Credit: Courtesy of Nordstrom

​​​​​​​Perhaps the most luxurious bar on this list, the Christophe Robin bar will make you feel hydrated from head to toe thanks to its aloe vera and castor oil. It’s also completely free of synthetic agents meaning you can feel good about the suds that head down the drain.

To buy: nordstrom.com, $22

J.R.Liggett's Old-Fashioned Bar Shampoo

Shampoo Bar
Credit: Courtesy of Amazon

​​​​​​​The J.R. Liggett’s bar is still made from the company’s original formula. Though it comes with no fragrance it will leave your hair silky smooth thanks to its hemp oil, essential fatty acids, and almond oil extracts.

To buy: amazon.com, $8

Ethique Eco-Friendly Solid Shampoo Bar

Shampoo Bar
Credit: Courtesy of Amazon

​​​​​​​Ethique’s Heali Kiwi is specifically formulated for those who suffer from dry, itchy scalps. The formula, made from kiwi fruit oil, coconut oil, neem oil, oats, calendula, and manuka oil, will leave both your scalp and hair feeling soft and totally touchable.

To buy: amazon.com, $16