Equine America SO KALM (PASTE) 3 X 10ML SYRINGEReduce Stress, promote calming and Improve Concentration. Horses can experience nervousness and tension before exercise or competition causing them to misbehave or wash out. So Kalm Solution contains a premium grade Magnesium with L Tryptophan, an essential amino acid associated with the production of serotonin, to calm and focus the horse, fed daily can aid concentration and willingness to work, but without removing the edge required for competition.