Formula 707 Calming Essentials Paste contains high levels of tryptophan to help horses concentrate on their work and training, plus electrolytes, vitamins, minerals and dextrose to maintain normal performance in horses. This calming supplement for horses is perfect for travel and competition. Each 30 cc serving provides guaranteed (per 30cc) 4.75% l-tryptophan, max 2.25% salt, 0.05% potassium, 592 mg niaciamide, 35 mg pyridoxine HCl (vitamin B), 35 mg thiamine HCl and 16 mg riboflavin. Directions: 15-30cc 1-2 hrs before competition, strenuous exercise, racing or shipping.