Generally speaking, liquids that are in unopened original packaging that is NOT glass will be OK shipped by air, provided that it is not punctured by a sharp object, so my usual advice if you have to do this is to pack it in a hardside cooler that is strapped shut. (NOT taped shut, because any time you check a cooler, the airline will normally ask to visually inspect the contents when you check it. Then TSA might open it as well, and if the tape won't stick back down, it could come open. A couple of buckled luggage straps work better.) My usual method is to put a folded beach towel into the cooler, then a LARGE h-d trash bag, with the packaged liquids inside, with towels around and between the packages, and another towel on the top, then close the bag.
I do not ever pack glass, or perishable liquids. Glass is notorious; one good crash and it's all over.
The worst leaks I've experienced have been partially-used toiletries. IME, an already-opened bottle in a checked bag will normally leak due to pressure in probably 25% of cases.