Bear grease can be used as it is. No need to add anything to it.
Bear's oil, should be just fine as it is, no need to add anything to it.
I've used both, as-is.
I've also used Marmot oil, as is and it was perfect.
I have found Vaseline:Beeswax mix 40:60 to work great as a black powder lube for grooved bullets in muzzleloading rifles.
mixed by weight. It is too stiff for patch lube in any weather.
I do not like stiff lubes in patches I have never found, in over 40years of shooting muzzleloading rifles, to need a wax of any sort in the patch lube.
Some guys have had bad luck with wax in their lubes, creating crusty fouling. I cannot see that happening, though, unless there is a lot of blow-by of
flame and burning gasses, actually burning the lube onto the bore.