Tekson Travel Size Bottles 3.4 oz, Travel Mouthwash Bottle, Refillable Containers for Cosmetic with Screw Cap for Travel Essentials (100ml, Clear), Sliver, Classic

I used these bottles to store mouthwash during two trips: one international long-distance where my bag was in the hold, and one a domestic overnight car trip. In both cases, the bottles held up just fine with no leaks. On the way back, one of the mouthwash bottles was mostly empty, which meant the bottle was mostly full of air. It didn't leak even though it was in my suitcase in the unpressurized hold of the aircraft. The bottles have a small "nozzle" at the top which you can remove with the edge of knife. I would buy again.

What I love: the variety of stick on labels for shampoos, conditioner, etc. What I like: the stoppers in the bottles, although they haven't been tested yet to see if they can endure a flight What I don't like: the tiny necks (bottle openings). any thick liquid , such as hair conditioner, is very difficult to put in the bottle

Great little travel bottles - I bought the ones with the metal caps. I had Isopropyl Alcohol (IPA), skin oil, shampoo, and conditioner in the bottles, and not one of them leaked! EVEN THE IPA - NO LEAKS! Great product, NONE of the other options I have tried in the past could contain even soap! These contained IPA, and the fluid level never dropped a tick. Perfect size, strong, burly bottles, yet easy to squeeze, and the material seems durable enough to last many years.

This is the second time I ordered these bottles - they are a great size for traveling with liquids. And a nice quality also.

I’ve tried so many fancy bottles. They all leak if you put liquids inside. It’s insane. These are the cheapest and the best travel bottles out there.