A muddy, matted coat needs a shampoo built for the job, not the same gentle everyday formula that's fine for a coat that's just a bit dusty.

This is a concentrated shampoo built around natural extracts of peach, pear, passion flower and kiwi fruit, formulated specifically for dirty, thick or matted coats - thoroughly cleansing and deodorising rather than just rinsing through. It's suitable for all pets with dirty, thick or matted coats, and Wahl name horses, dogs, cattle, goats, llama, alpaca, rabbits and ferrets specifically. It's also sold in a smaller bottle alongside the 5-litre size.

• Concentrated shampoo for dirty, thick or matted coats
• Contains peach, pear, passion flower and kiwi fruit extracts
• Thoroughly cleanses and deodorises
• Sold in a 5-litre bottle, also available smaller
• For all animal hair types, named for horses, dogs, cattle, goats, llama, alpaca, rabbits and ferrets
• Paraben free, vegan friendly, gluten free, phthalates free, alcohol free, sorbates free, phosphates free and DEA free

On the dilution ratio. Wahl's own materials for this product give two different concentrate ratios in different places, so we can't confirm the exact dilution rate here - check the bottle itself before mixing, rather than assuming it matches the rest of the range.

Who it's for: owners of genuinely dirty, thick or matted-coated animals who need a heavier-duty shampoo than an everyday all-purpose one.