Frontline

Frontline Trusted Flea and Tick Defense

Frontline has been a leader in pet parasite protection for over 20 years. Originally developed by Merial (now part of Boehringer Ingelheim), it changed the game by offering a simple, monthly topical treatment that actually worked. Before Frontline, pet owners had to rely on messy sprays, powders, or dips that didn't last long. Frontline introduced a way to kill fleas and ticks that was easy to use and waterproof.

The brand is famous for its "fipronil" formula. This active ingredient is stored in the oil glands of your pet's skin. It works like a shield, continuously refilling the protection over your pet's coat for a full 30 days. This means your pet stays protected even after swimming or taking a bath.

Frontline is for the pet owner who wants reliable peace of mind. It is perfect for families who love the outdoors but hate the bugs that come with it. If you want a vet-recommended solution that stops an infestation before it starts, Frontline is the right choice.

Why Frontline Works

Kills Fleas Fast: The active ingredient, fipronil, attacks the nervous system of fleas. It kills adult fleas within 24 hours of contact, so they die before they can lay eggs.

Breaks the Lifecycle: Most Frontline products also contain (S)-methoprene. This is an insect growth regulator that acts like birth control for bugs. It stops flea eggs and larvae from developing, which prevents your house from getting infested.

Waterproof Protection: Because the medicine is stored in your pet's oil glands, it doesn't wash off easily. You can bathe your dog or let them swim 24 hours after applying it, and the protection will still work.

Repels Ticks (Shield Only): The newest formula, Frontline Shield, adds a repellency feature. This means ticks are scared away before they even bite. It also repels mosquitoes and stable flies, which can carry dangerous diseases.

Easy Application: You don't need to force your pet to swallow a pill. Frontline comes in a small tube that you simply squeeze onto the skin between your pet's shoulder blades. It spreads over the body on its own.

Top Frontline Formulas

Frontline® Plus (Dogs & Cats)

This is the classic, trusted formula. It kills adult fleas, flea eggs, flea larvae, ticks, and chewing lice. It is safe for puppies and kittens as young as 8 weeks old. It is the "gold standard" for basic monthly protection.

Frontline® Shield (Dogs Only)

This is the strongest protection available. It does everything Plus does, but also repels ticks, mosquitoes, and stable flies. It is perfect for dogs that go hiking or live in areas with lots of bugs. Note: This is for dogs only and is toxic to cats.

Frontline® Gold (Dogs & Cats)

Frontline Gold is designed for speed. It has a triple-action formula that starts killing fleas in just 30 minutes. It uses a new easy-to-use applicator that makes putting it on your pet faster and cleaner.

Frontline® Spray

For severe infestations or for use on very young animals, the spray provides immediate relief. You spray it over the whole body to kill fleas on contact. It is safe enough to use on puppies and kittens as young as 8 weeks.

HomeGard® Spray

Fleas don't just live on your pet; they live in your carpet, too. This spray is for your house. It kills fleas and prevents eggs from hatching in your rugs and furniture for up to 6 months.

Protection You Can Count On

Frontline has protected millions of pets from itchy, dangerous parasites. By focusing on safe, effective ingredients that last a full month, they make pet care simple. Whether you choose the classic Plus formula or the advanced Shield, you are giving your pet a month of freedom from bugs. Explore the full range at Curated Pets and consider asking a vet to find the right plan for you.