Fido's White and Bright is a coat-brightening shampoo made for dogs with white, silver or light-coloured coats. If your dog's coat has gone dull, yellowed or grubby-looking between grooms, this is the specialist wash for the job. It suits dogs of all ages, including puppies with light coats, and comes in a 250ml bottle that goes a fair way when diluted properly.

The formula is soap-free and pH-balanced for canine skin, so it cleans without stripping natural oils. Optical brighteners do the whitening work — they add brilliance and shine to the coat without any bleaching agents, which matters if you've seen what harsh whiteners can do to skin and coat condition. It's enriched with orange and grapefruit extracts, rinses out cleanly without leaving residue, and leaves a fresh scent that hangs around for days after the wash.

Owners of white and light-coated breeds tend to stick with this one because it actually brightens without the purplish residue some whitening shampoos leave behind. It rinses clean, it's gentle enough for regular use, and the results are visible — which is the whole point of a whitening shampoo.