Hypo-Allergenic Shampoo Discover the most exciting shampoo for the pet care industry, offering extraordinary mildness plus superior cleansing and foaming. So-Gentle is tearless and soap-free! It is mild enough for even the most sensitive pets. Scientifically formulated, So-Gentle is free of perfumes and dyes and will not leave an irritating residue. Derived from natural regrowable sources such as corn, coconut, and palm kernel oils. It has been extensively tested to ensure the utmost in mildness for skin and eyes by in-vitro methods, a non-animal testing procedure.