Patent ID: 7727468

Claim:
A test kit for measuring and quantifying the capacity of moisture containing cleansing article to neutralize alkalinity of residues on human skin and to restore natural pH of skin, by evaluating the pH and buffering potential of said moisture containing cleansing article, comprising: a moisture containing cleansing article comprising a fibrous substrate and a lotion disposed on said fibrous substrate; a substrate for simulating human skin with said alkaline residues comprising a visual pH indicator and a pH buffer for providing the reservoir of alkalinity disposed on said substrate, wherein the pH buffer is adapted to modify the ability of said lotion to maintain pH of natural human skin by shifting its acid-base equilibrium to simulate interaction of said lotion with said alkaline residue, and further wherein said visual pH indicator changes color at a pH above 4.0, and is adapted to indicate the final pH of said lotion that interacted with the pH buffer.