LAVENDER HORSE RINSE QT 4 - Quart by Epona Ltd. $23.31. Made With Colloidal Oat Protein, Extracts Of Chamomile, Comfrey, And Alfafa. Cleansing, soothing, and beautifying rinse for coats, manes, and tails. Shake well. Add 2 capfuls of rinse to 1 gallon bucket of water. Sponge onto thoroughly wet horse. Scrape off excess water. No rinsing required.. Save 12%!