I have several of these tubes. They work well for liquids that are more water-like in consistency. I use it for Bronner's Liquid Soap and Kiehl's Face Lotion. It's the perfect combination when used with Bronner's liquid soap. Kiehl's face lotion will not work with this type of travel bottle. Nothing spills, but squeezing lotion out is a lot harder when you have less than half a bottle. It's possible that the sealed hole is preventing it from getting the last bit out. The workaround is to just unscrew the cap to get what you need, but it's not that ideal. I've used them on several trips both domestic and international and haven't had any issues with TSA or leaks.
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