Sugarplum is getting her first bath at home this weekend when I’ll have some help. I want to use a whitening shampoo. Any recommendations? I’ve read that it shouldn’t be used every time a white dog is bathed because it is drying. If this is the case, could I add a very small amount of an oil such as olive oil or hemp oil, or perhaps use a moisturizing conditioner, leaving it in for a couple extra minutes? BTW, I do add organic cold pressed hemp oil to my shampoo because I have moderate to severe scalp psoriasis, and not only does it soothe my scalp and reduce the scaling, but it has also softened and strengthened my hair. There was also some significant thinning in some areas, and hair is starting to grow back.