As the proud owner of a Santa Claus beard (though in color and texture, it’s more of a Grizzly Adams beard) I would say that the most important thing is to turn the care over to a professional. Just like your hair, don’t attempt to manage it yourself (beyond washing, combing and the loke). Find a stylist who also does beards and go on a regular schedule and have them trim it and maintain it. And they’ll also be able to tell you if you need to do something special to care for it.