A flea treatment that only kills adult fleas leaves the eggs already in the home to hatch straight into the next generation, which is why the products that actually break the cycle combine more than one active ingredient.

FIPROtec Combo for Small Dogs combines fipronil, to kill fleas, ticks and biting lice, with (S)-methoprene, aimed at fleas already in the environment by preventing eggs from hatching and further fleas from multiplying in the home. Beaphar describe it as suitable for dogs from 8 weeks of age and weighing 2-10kg, and state it can be used during pregnancy and lactation. This listing is a pack of 6 treatments.

• Combines fipronil and (S)-methoprene
• Kills fleas, ticks and biting lice
• Also acts against flea eggs already in the home
• For dogs from 8 weeks and 2-10kg
• Stated as usable during pregnancy and lactation
• Pack of 6 treatments

On dosing. We're not printing an application rate or interval here — this is a veterinary-strength medicine, and the pack itself, or the leaflet inside it, carries the exact directions for your dog's weight. If your dog is already showing signs of a heavy flea infestation, or you're unsure it's the right product for your dog's size, check with a vet before applying.

Who it's for: owners of a small dog, 2-10kg and over 8 weeks old, wanting a combination treatment that addresses fleas already present in the home as well as on the dog.