I posted this on DK's Grooming board as well, but thought since Lucy is a cream colored Labradoodle, that the group here might have special insights into the problem (and offer unique solutions).
Lucy is a (nearly 2) cream Labradoodle and she's never had a problem with a stained beard... until now. I've always used Chris Christensen's 'White on White' on her beard while bathing and that's seemed to keep the staining under control. Now it doesn't touch it.
The only thing that has changed with Lucy's diet and grooming in the past several months is I've been brushing her teeth every night with Petrodex Natural Peanut Butter flavor toothpaste, and wiping her mouth and beard with a damp paper towel after meals. Could it be the toothpaste? I may have to switch her to something else, but I'm hesitant to do that since she developed a bad case of drooling after a month of using an enzymatic toothpaste (Tropiclean brand). Any suggestions on a non staining toothpaste that maybe doesn't have enzymes in it? I'm afraid there isn't anything that will "get the stain out" at this point, but am open to suggestions on that too.
Thanks guys... I look forward to hearing your ideas!