Supreme Products Leg & Body Whitener. The Supreme Products Leg & Body Whitener is a brilliantly white powder which can easily be applied to the legs or body to make those white patches really stand out! The paste is non-sticky and can be added to final rinsing water to whiten the body, mane and tail. The powder can be used dry to cover up last minute stable stains or wet to create a highly concentrated form to produce extremely white legs. For optimum results and convenience, it can be applied overnight whilst wet and require minimal grooming in the morning.