Anti Cracks by Horse Master helps fight mud fever and cracks in horses. Mud fever and cracks are discomforts that can cause irritation and pain to horses. Anti cracks is a nourishing and moisturizing cream now composed of shea butter, white clay, essential oils and aloe vera. The natural ingredients of this care product have been specially selected for their properties to hydrate, soothe and regenerate damaged skin tissue. White clay also helps purify sensitive areas.