1. Recipe for Men (pictured above)
With three full-size tubes of oil-fighting facial cleanser, 12-hour moisturizer, and clear shaving gel, you won't be hunting down a pharmacy overseas. $85; recipeformenusa.com. Louis Vuitton toiletry pouch, $760; louisvuitton.com

2. Urth
This face wash, exfoliant, and shave formula are all good for sensitive skin, but the standout here is the face balm: With its SPF 15 sun protection, you can hit that poolside chaise right after deplaning. $60; geturth.com. Mulberry wash case, $500; mulberry.com

3. Port Products
After four years of carrying top-flight men's brands, online apothecary The Motley has launched a line of its own. The mini cleanser, shave cream, and daily moisturizer upgrade your regimen with nourishing botanicals like willow bark and yucca root. $32; themotley.com. Jack Spade Dopp kit, $98; jackspade.com

4. Aesop
Australians know how to travel (when they go, it's for months), and this Aussie brand's Jet Set pack features the essentials: shampoo, conditioner, body balm, and its popular geranium-leaf body cleanser—to wash away the jet lag. $37; aesop.com. Bottega Veneta toiletry case, $920; bottegaveneta.com

5. Malin + Goetz
The award for most comprehensive goes to the 1-ounce Essential Kit from Malin + Goetz, the line of choice at hotels like Los Angeles' Mondrian. It includes cleansers and moisturizers for body and face, plus peppermint shampoo and cilantro conditioner. $30; malinandgoetz.com. Bally toiletry bag, $595; bally.com