A working coat is judged on colour as much as condition, and grooming customers with red, brown or copper-toned dogs know the difference between a shampoo that just cleans and one that keeps the coat looking the way it's meant to.

This is a concentrated shampoo, diluted at a ratio of 15:1 with water before use, built around peach, pear, passion flower and kiwi fruit extracts that Wahl say revitalise and refresh the coat's natural red and brown pigmentation while also removing dirt, grease, stains and odours. It's formulated for all animal hair types, and Wahl name horses, dogs, cattle, goats, llama, alpaca, rabbits and ferrets specifically.

• 5-litre bottle, concentrated at a 15:1 dilution ratio
• Contains peach, pear, passion flower and kiwi fruit extracts
• Targets red, brown and copper coat pigmentation
• Paraben free, vegan friendly, gluten free, silicone free
• Also phthalates free, alcohol free, sorbates free, phosphate free and DEA free
• Formulated for all animal hair types, named for horses, dogs, cattle, goats, llama, alpaca, rabbits and ferrets

On the dilution. At 15:1 this bottle makes a lot of ready-to-use shampoo, which is the right economics for a groomer working through several dogs a week but poor value for a single pet owner who'll use a capful at a time - check the ratio before assuming this is a small bottle at a big-bottle price.

Who it's for: groomers and multi-dog households with red, brown or copper coats who go through shampoo fast enough to make a concentrate worthwhile.