Beard Butters are for all you natural and beastly beardos. Beard Butter are applied to the beard hairs with the intent to soften. Butter should be used on a daily basis, either night or day (beards preference) and will created a fuller, healthier beard over time. In the mean time, it will make your beard more smell more like something to be desired, and less like a foot, which is a plus.
Beard Butter is more suitable for longer beards, (longer than say 3/4") but hey, if you have a shorter beard and want to butter up, who are we to stop you. Just remember, a little bit goes a long way.
Butter will lightly shape hairs after it is combed through. It will result in a very natural appearance. Butter is mandatory for the fellow with a longer beard that would benefit from be viewed as well kept.