There are benefits for both horse and human. SHINE IN YELLOWOUT• takes yellow stains out of hair and gives dull hair of every color a more brilliant sheen. It leaves hair silky, shiny and smelling good. Apply to wet hair, massage in until blue suds turn white. Soak for two to five minutes, then rinse well before repeating, if necessary. Try COWBOY MAGIC® GREEN SPOT REMOVER®, then continue to reapply COWBOY MAGIC® YELLOWOUT• per directions. If stain persists, it may be permanent. Continue to follow directions to minimize permanent yellow stain until stained area can grow out.