Drug-free calming supplement helps control high anxiety in horses that are tense, easily spooked and inattentive. Supplies four types of magnesium for maximum bio-availability and to help broaden the effects. Also supplies amino acid theanine, an effective aid in relaxation. Helps horses relax and regain focus so their attention is on the ride. Non-herbal; all ingredients are exempt from FEI restrictions. Paste is a quick, easy way to provide rapid stress relief to keep horses cool and calm.