Our pup had a beautiful coat and then when she turned 2 she developed hair thinning and had a half-dollar sized bald spot. We have had to treat her with antibiotics and prednisone. We still don't know the exact cause of her issues, but we had to find a hypoallergenic shampoo and conditioner. We now use Earthbath Hypoallergenic products and she has done very well with them. She comes out clean but not stripped of oils and conditioned but not coated with anything. Solving her skin issue has been so hard that I don't think I would venture to use Pantene or any other human product.
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1 https://www.amazon.com/Earthbath-Nat...th+conditioner