I am posting an article of the Dogs Natural Magazine , for you, and me to gain awareness of dog shampoos, and conditioners, that they are not all what you think they seem to be.
I myself have quit already some time ago to use conditioners on my dogs, as I know the the outcome of shiny clean hair/fur is either better, or at least as good by not using it at all. I do give dogs a rinse half vinegar, half water, which also works as a flea repellent. This rinse makes their coat as shiny, and soft as it gets, the vinegar smell is also gone by the time the coat is dry, and the end result is just a nice subtle, clean odor.
Here a clip from the article, and below the link to it. Please read, it is definitely applicable to humans-, and their pets.