The beard in question....A few weeks ago I tried a baking soda paste with some results. Bear in mind I already use a whitening shampoo that Eliza (with three very white Samoyeds) recommended to no avail. So, I have been diligently researching beard whitening techniques. Some OES (Old English Sheepdog) people recommend equal parts hydrogen peroxide and milk of magnesia with corn starch added to thicken it. I tried this last night. The directions I found said to leave the paste on for 10 minutes.
The results.....Definately cleaner looking, but yellowish. The yellow stain is definately a combination of dirt, food, and the enzymes in her mouth. So, I think we will be shortening her beard and waiting for the ick to grow out - and after that just trying to stay on top of it and buy even more expensive whitening shampoo - Chris Christensen here we come.