Vitamin and Amino Acid Supplement for Training and Competition Horses Kalmtex is a balanced mix of Thiamine Hydrochloride (B1) and L-Tryptophan. Thiamine is a B-vitamin that is required by horses for a variety of normal metabolic functions, including carbohydrate metabolism and energy utilisation. B-vitamins also play a role in maintaining healthy nervous system activity and general well-being. Tryptophan is an essential amino acid and a natural precursor to serotonin. Serotonin is a neurotransmitter involved in many normal body processes, including supporting regular appetite, digestive activity, and general balance in the nervous system.Directions: 30ml to be added to the feed 4 hours prior to exercise Proudly Australian Made. Product code: VET12652 This product is a vitamin and amino acid supplement and is not registered with the APVMA. It is not intendedto diagnose, treat, cure or prevent any disease. Please consult your veterinarian before use.