The phrase "hair shampoo" refers to a liquid or cream substance that is used to clean and wash the hair, making it feel fresh, removing dirt and oil. Full definition
Because of all the chemicals that are included in human hair shampoo, using it on a dog, and especially a puppy, can cause skin irritation. (moberrypets.com)
If you are not sure of what pet dog hair shampoos and soaps are fit for them, consult your veterinarian. (sandiego.vet)