Promotes concentration and relaxation Nervo is a supplement with magnesium and L-tryptophan that has been specially developed to promote relaxation and concentration in the horse. With L-Tryptophan for relaxation and a good feeling; Magnesium for mental and physical relaxation; Can be used long-term or for targeted use; Additional information: Magnesium is a mineral that plays an important role in muscle relaxation, but can also provide mental relaxation. It promotes concentration and also contributes to the maintenance of strong bones. A horse gets a lot of magnesium from its roughage and any concentrated feed. A horse in development or training needs more magnesium than a horse at rest. A magnesium deficiency can cause tense muscles, nervousness and restlessness, and poor condition. L-tryptophan in Nervo is important for the brain to relax. L-tryptophan is converted into serotonin in the body, also known as the happiness hormone, which helps with relaxation and a good feeling. Nervo can be used specifically for a stressful period, but can also be fed for a longer period. Nervo helps to make your horse less sensitive to stress without this being at the expense of your horse's performance. In addition to Nervo, a handy paste has also been developed that is easy to take with you: Nervo Paste.