You have tried the rest now try THE BEST STAIN REMOVER!!!
 
Our Stain Remover is a powerful formulation to remove built in urine, grass and manure stains quickly and effectively from your horses tails and manes
A fast-acting stain remover thats  colour-safe, contains No Peroxide, No Bleaching Agents. 100% safe to use on trio coloured tails.
 
Comes in 500ml bottle.
Proudly Australian made.