Some of our beloved furry friends have allergies and skin sensitivities that can make it difficult to keep them clean and happy at the same time. (Puppies and kittens, older pets, certain breeds, and allergy-prone pets often benefit from a hypoallergenic formulation.) earthbath solved this dilemma by blending the best ingredients into this gentle, hypoallergenic shampoo. As per veterinarian orders, it is intentionally free of any fragrances or dyes. Does not wash out after topical flea treatment. Safe for all pets over 6 weeks old.