Smart Grooming's SUPER BLUE - the little pot of blue powder to create absolute whiteness!  

Negates the yellow stains and brings brightness and white to greys.  Use a tiny amount in a bucket of warm water.  A little lasts a very long time.

Used as a final rinse over the whole body or just on the mane and tail.  

Much like the old fashioned "blue bag" used to whiten laundry on wash day!  

30g pot.