I brought my puppy home in early 2019 and ordered the Pure & Sure puppy shampoo because she's a German shepherd and they often have sensitive skin. She was 15 pounds of fluff and the shampoo was perfect. Now she's almost two years old and 70 pounds and I am still ordering this puppy shampoo! Here's why. This shampoo has never irritated her skin. She is a "mountain/forest" dog and spends her days in mud, sap, organic debris, you name it. And she is an all-white shepherd. Because of skin sensitivity, it's usually recommended bathing only once every few months, but because of her lifestyle, I bathe her every week. And again she's never reacted to this shampoo. Here's the other amazing thing. I've read through the ingredients and I can't figure out how it works so well, but this shampoo actually washes out the sap from her fur. Where we live, the dirt is that deep rust/red color...so within a day or two after her bath, she's starting to match the dirt. I bought whitening shampoo, wondering how that would work on her, but the Pure & Sure puppy shampoo actually leaves her whiter than the whitening shampoo! Crazy, right? So even though she's huge now and I go through the puppy shampoo bottles super fast, this is the only the shampoo I use for my full-grown white GSD. This stuff has my highest recommendation.