Just in time for seasonal changes! The number one choice for horses with respiratory difficulties! Koff is a rapidly absorbed fast acting liquid extract. It contains only rich concentrated plant extracts, with no added fillers such as cider vinegar or honey. It helps to soothe and support the tissue of the lungs and respiratory system. Koff contains pure tinctures of Licorice (Glycyrrhiza glabra), Aniseed (Pimpinella anisum), White Horehound (Marrubium vulgare), Thyme (Thymus vulgaris) and Elecampane (Inula helenium) at a strength of 1:2 ; the strongest concentration available to the equine market. Does not contain any ingredients recognized to contravene the Jockey Club, FEI, or BSJA rules regarding prohibited substances. Available as monthly supply of 500ml. Larger units upon request.