I’ve repurchased the Bianco Shampoo multiple times now! It’s great for removing stable stains (add a small amount to a bucket with warm water and wash with a brush or sponge), and for more stubborn stains you can apply the shampoo directly to to stain, scrub, then leave to sit for 5 mins before rinsing! Love it!
This is the best product I have used on my grey horse. There was a slight delay with the delivery but the customer service was superb and the shampoo was well worth the wait.
Best product out there