We only travel with carry-ons. But we do ship a lot of stuff, including liquids, from the states. Anything with a cap of any kind gets duct tape and a ziplock!!
I’m a big fan of duct taping things inside the ziplock bag, too. Had a harder plastic cap crack once inside the ziplock and it was still a mess to clean up even though it was contained. And I lost half the sunscreen. 👎