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 re-growable 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.