A powerful antioxidant, our Endeavon E is natural identical & has been derived from natural vitamin E using a synthesis process. Endeavon E is concentrated & represents excellent dollar value. It is suitable for horses and dogs.DIRECTIONS FOR USEHorses at work.....................7g-15g dailyStallions at stud...................7g-30g dailyMares (in foal)......................7g-30g dailyYearlings..............................7g-15g dailySpelling Horses..........................