Quote:
Originally Posted by Ladymom Human skin has a pH of around 5.5 to 5.6. A dog's skin has a pH of between 6.2 and 7.4.1 Shampoos formulated for humans are much more acidic than those for dogs. Using a human shampoo can upset the balance of a dog's skin and dry the coat out.
Also, shampoo formulated for dogs is designed to be used with topical flea preventatives. Some human shampoos can wash the flea preventative right out. |

I thoroughly agree with this; the pH is a really important difference, and it probably won't happen overnight, but in time, will leave the hair looking fried, and can also lead to serious dry skin problems. It's easier to prevent skin problems then cure them. There are many great dog shampoos, find one that works best for her coat type.