NAF Instant Magic Box 6 x 3 Pack Give your horse the confidence they need with the NAF Instant Magic Box. Using bio-available magnesium with a fast acting herbal base, Instant Magic provides an instant calming effect for your horse. Instant Magic is best used for horses who only require the use of a calmer on a short term, immediate basis. This is useful for particularly 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. Read more… Directions for use: Use syringe 1 hour prior to when needed. If necessary, give 1 syringe the evening before.