The E3 Elite Equine Evolution Brightening Shampoo Specially formulated for horses, this Brightening Shampoo is fortified with Nano Vitamins A, C, E and F for superior absorption and penetration leaving brighter manes, tails and coats. It contains optical brighteners that give your horse brighter whites, shiny highlights and silvery, sparkling grays. The unique formula neutralizes yellowing and enhances highlights.