Its nearing the end of the Victorian Show season. Thought we could share our tips. One of my boys has white socks so I clip them the week before and then shampoo with a horse whitener shampoo and use white chalk on the day. I believe Sok It is also good. But with clipping use a standard blade dont cut too close as horse can get sunburnt on the day.
Just discovered the hair dye root touch up product. They have a directional spray. great to touch up the white hairs.