A kit for visualizing to a consumer a whitening benefit provided by a cosmetic composition is provided. The kit comprises a control sample and a product sample, where each of the sample comprises a set of super absorbent polymer beads. The set of beads in the control sample are simultaneously or sequentially contacted with a control sample solution and a melanin generator, and the set of beads in the product sample are simultaneously or sequentially contacted with a product sample solution and a melanin generator. The control sample solution is free of whitening actives, and the product sample solution comprises one or more whitening actives. A method of visualizing to a consumer a whitening benefit provided by a cosmetic composition is also provided.