The problem with Angel Eyes is you have to use it long term and it's not good to give antibiotics that long.
Also, since there is liver in the product, if your dog is allergic to liver you compound the problem thus having
to keep using the product.
Once your pup stops teething and you find he/she still has tearstain problems, you can try Tylan powder from your vet. Angel Eyes is a dilluted form of Tylan powder that contains both Tylan and beef liver to make it taste better. I would recommend going with the regular Tylan over the Angel Eyes because it is MUCH cheaper and seems to work faster. Usually you will do a 10-day course of the Tylan, and if the new growth doesn't come out white, you can do another 10-day course. After doing two courses, if there is still new staining, there is an underlying problem such as allergies, tear duct blockage, shape of the eye, eyelashes growing inward toward the eye, etc.Keep in mind that Tylan is an antibiotic and there may be long-term consequences that you will have to consider. Many SM members have successfully used Tylan, and others feel it is uneccessary.Any of the topical eye treatments don't seem to work well, and this includes Eye Envy, Stay White, etc. I think only a few people have had long-term success with these methods.
A teaspoon of plain nonfat/lowfat (organic if available) yogurt can sometimes help improve the staining.
