I used the magic syringes, useless.
Have had success with one mare with oxyshot, failed with the other.
I am currently finding this stuff v good and not expensive: http://www.equiport.co.uk/product_detail.cfm?pId=467
Magic syringes worked well on mine after much research!! Highly recommended!
Have also put him on the normal magic calmer, as i was so impressed and thats helped so much too
We have horses at our yard on 4 different calmers. NAF Magic, Blue chip Karma, Magnitude and Nupafeed. Nupafeed is the only one that seems to make a difference.
I found that Magnitude and NAF Majic worked well on my horse. The Naf one worked best as it really chilled him at shows. But wierdly, the Mollichaff Calmer is also working and I only give him this now and ist cheaper.