Horslyx Garlic Balancer contains pure garlic oil to help provide a natural and effective way to help combat the problem of biting insects. Independent research conducted at Aberystwyth University has shown that feeding Horslyx Garlic can significantly reduce the irritation from flies and other biting insects whilst horses are at grass. It also concludes that Horslyx Garlic Balancer helps alleviate irritation caused by sweet itch.