Frontline Plus Cat Green is a monthly spot-on flea and lice treatment for cats of all breeds and sizes. The green-labelled formulation is the cat-specific version of the Frontline Plus range — do not use dog variants on cats. Sold as a 12-pack of single-dose pipettes, giving a full year of monthly protection from one box.

The active ingredients fipronil and (S)-methoprene work together to kill adult fleas and disrupt the flea life cycle by targeting eggs and larvae in the cat's environment. It also treats biting lice. Applied topically between the shoulder blades, the liquid spreads through the skin's natural oils and continues working even if the cat gets wet. Each pipette delivers a single measured dose.

Owners tend to reach for Frontline Plus because it is a familiar name recommended by vets for decades, applies in seconds, and covers a full month per pipette. The 12-pack format suits households wanting to buy protection in bulk rather than tracking down replacements every few weeks.