BTW, shampoo is not the best option for 2 reasons. 1. Shampoo is not designed to effectively clean the type of soil you're dealing with. 2. A multitude of ingredients are added to shampoo to ensure it does not strip the hair too much of the natural oils, to balance pH, to add body, etc. All the extra ingredients, even when thoroughly rinsed, leave residues that dull the sheen on feathers somewhat. I don't get the other colors, or fragrances of Dawn, just the original Blue. It's the one they used in the commercial about cleaning the oil off the ducks, and seals caught in the Alaskan oil spill.