All-Natural Whitening Spray Contains optical enhancers Designed with a proprietary blend as a dispersion coupler Sugar Coat is a all-natural show day whitening spray, that offers a natural appearance. This all-Natural Whitening Spray Contains optical enhancers. Designed with a proprietary blend as a dispersion coupler to assist the product with fast mixing. When applied this product dries quickly with warm air. Depending on how bright you would like the animal, you may have to apply several light applications to obtain the desired look.