The Finish Line Thia-Cal Liquid B1 Calming Powder Horse Supplement supports healthy nerves in your horse, promoting an improved performance. If your hot, spooky horse uses up half his energy before he gets to the show ring, rides are less than enjoyable. This supplement contains vitamin B1 and promotes relaxation to settle and channel those nerves and horseplay into focused energy, so you’ll both have a better time and stand a better chance at placing in the ribbons. Because this supplement doesn’t contain tryptophan, valerian root or kava kava, it won’t make your horse dopey or dull and will not test.