For focus and concentrated performance when needed most. L-tryptophan, an essential amino acid and precursor to serotonin. Serotonin, a neurotransmitter associated with inhibition of fear and stress. B-complex vitamins, an effective combination to support the nervous system. Magnesium, a key mineral for muscle and nerve function. Ideal for horses needing support to cope with their environment, during competition or needing help to cope with stressful situations such as travelling and changing in their environment.