The new formulation contains: Citrepel, Tea Tree Oil, Castor Oil, Lavender Oil and Cedar Wood Oil. Available in 750ml spray and also 2 litre refil bottle. This natural equine spray is perfect for the horses that you care about. Specially formulated for horses and ponies, it gives superior natural protection from troublesome biting flies. Equine America Fly Repel is an essential horse care product for long lasting fly deterrence. The natural ingredients allow safe use for both horse and rider. Take care when applying around the eyes.