Sensitive Pearl by Horse Of The World: the shampoo that will relieve your horse from irritations and itching! Sensitive Pearl is a gentle and soothing shampoo for horses, specially formulated for sensitive skin. It is made with natural essential oils that help relieve irritations and itching. Here are some benefits of Sensitive Pearl shampoo: It relieves skin irritations and itching It hydrates and nourishes the skin, for a shiny and silky coat Sensitive Pearl is the ideal shampoo for your horse to have healthy and comfortable skin.