Foam has one clear advantage over a spray in an uncooperative mouth: it stays where you put it. A pump of mousse onto the gum line spreads along the teeth as the pet licks and swallows, so contact time is far longer than with a fine mist that has evaporated in a second. For a cat who clamps her jaw shut the instant she sees the bottle, that difference decides whether the product does anything at all.

Application is a pump onto the teeth and gums, with no scrubbing and no brush involved, which makes it plausible as an every-evening habit rather than a weekend project. It is aimed at the soft plaque film before it mineralises into tartar, and that window is where home care genuinely helps. Plaque hardens within days, and once it has, brushing, foaming and spraying all stop reaching it.

• 100ml bottle
• Foaming mousse clings to teeth and gums
• No brushing or scrubbing needed
• Suitable for cats and dogs
• Aimed at loosening tartar and reducing plaque
• Designed for regular daily use

Read the label and watch the mouth. Follow the on-pack instructions for how much to use and how often, and stop if you see any redness or irritation. Claims about lifting existing tartar deserve caution across this whole category, so assume the real benefit is slowing new build-up and let your vet deal with what has already hardened on the tooth.

Who it's for: Cat and dog owners who want the longest possible contact time from a no-brush dental product, particularly with pets who dislike being sprayed.