The NAF Five Star Instant Magic Calmer Syringe combines bio-available magnesium with a fast-acting herbal base, which can be put to good use in stressful situations, such as competitions, clipping, travelling or getting a visit from a vet or farrier.Instant Magic does not contravene FEI rules and can be safely used for all horses.Best for short-term useSize: 30gHow to use:Use syringe 1 hour prior to when neededIf necessary, give 1 syringe the evening before