First Ever Dry Powder: The fine dry particles in No Thrush adhere to the moisture from which thrush originates, providing results in 3-4 days. Used at the world’s largest barns to help promote healthy hoof regeneration, heal scratches, coat issues, and rain rot. | Easy to Use: Dust frog and brush powder deep into all the hoof grooves and heel cracks. Use once daily until there is no visible thrush remaining and heel bulbs are firm. If crack between heel bulbs is present, use 3-4 times per week until crack is regrown and closed. | Natural & Non-Toxic: Made from all-natural ingredients, including high purity air-floated kaolin clay. No Thrush does not contain harsh chemicals and is non-caustic and non-staining. Treat thrush fast and easy - just "Dust-on." | Multiple Sizes Options: Available in 3 bottle sizes. The 2.5 oz provides approximately 25 applications, the 5.5 oz provides 60 applications, and the 10 oz provides 110 applications. We recommend the larger sizes for barn use, and smaller size for on-the-go. | Made in the USA: No Thrush was developed at our Four Oaks Farm Sport Horse Rehabilitation Centre in Simi Valley, CA. We stand firmly behind our products, and our customer service team is ready to exceed your expectations.