Perfect Prep EQ™ Pro Focus delivers powerful, concentrated equine calming support in an easy-to-give 30cc rapid release paste for an exceptionally focused horse while avoiding the feeling of fatigue. Use 90 minutes before increased stress. Effects begin within one hour and last up to 8 hours. Concentrated 30cc oral paste is easy-to-give and tastes great! Works well alone or as part of the Perfect Prep EQ™ Calming System. Contains no prohibited substances. Does not contain L-Tryptophan.