NAF Five Star PROFEET Liquid 1 Litre. NAF Five Star PROFEET Liquid offers nutritional support hooves. PROFEET provides the recommended levels of biotin combined with other key nutrients such as methionine, bio-available sulphur, zinc and complex vitamins and minerals. PROFEET also provides a naturally sourced antioxidant complex that supports the liver and flushes away excess toxins to clear the horse's system and promote a shiny coat and strong, healthy hooves. NAF Five Star PROFEET should be fed when recommended by a farrier or when compromised hoof health is evident. Read more… Biotin Recommended Daily Amounts Large Horse - 30mg Horse - 25mg Ponies - 15mg ProFEET Recommended Daily Amounts for Horses & Ponies 600kg+ - 39ml 400-600kg - 25ml Low Maintenance - 15ml Ponies - 15ml Low Maintenance - 10ml Feed Low Maintenance Levels to maintain healthy hooves. A 1 Litre bottle fed to a horse weighing between 400-600kg will last approximately 40 days.