HoofBuilder Contains Highly concentrated biotin MSM, diatomaceous earth and prebiotics to improve hoof quality. Contains biotin, fermented yeast, insulin, diatomaceous earth and MSM. A unique combination of nutritional substances that have proven to be significant for the development of the hoof and growth of horn, as well as prebiotics that contribute to a sound gut flora. Ideal for horses with reduced hoof quality, poor growth of horn, crack formation or just as maintenance. Is provided at least 8 to 12 months for results. Biotin (Vitamin H) 1000mg/kg. Free from sugar. 900 g. 96h competition waiting period.