Originally Posted by
tide
Rogaine foam is < 3 oz (2.11 oz to be exact). Why don't you put it in a ziploc bag and carry-on?
A desire to carry several other <= 100mL "hazmats" that would not fit in the same 1liter bag as the medication. The contents (mostly butane) may be less than 100mL (or 3oz, depending on which translation of the "rules" you read), but the container is probably far larger.