What sort of trip?
5 days in the Alps I’d not worry unless you’re doing all day epics every day. 5 days doing the HT550 I’d take something.
For the former I’d just take any old dry lube or wet lube depending on conditions and apply at he end of the day if it starts to feel dry just like you normally would. You could probably DIY it if you really wanted, just mix something like paint thinners, petrol or hexane, with putoline at about 4:1? Just don’t let it get on anything painted or plastic just in case.
For a bikepacking trip I’d take wet lube because you can apply it on the go without waiting for it to dry. I take a little dropper bottle of chainsaw oil* with me on camping trips for this reason. I’ve never really worried about applying stuff over putoline, it makes a greasy mess if you add too much wet lube, but you can scrape the excess off your jockey wheels when you get home and just chuck the chain back in the fryer.
*it’s like those old-fashioned wet lubes, except practically free if you have a chainsaw.