Kills fleas, ticks and chewing lice
Breaks the flea life cycle by killing adult fleas, eggs and larvae, plus ticks and chewing lice, so infestations stop coming back.
Cats
Frontline Plus for Cats and Kittens – 6 Month Flea and Tick Prevention
Total protection against fleas and ticks Fleas aren't just annoying — they're a genuine health problem for your cat. Frontline Plus for Cats is a fast-acting, long-lasting topical...
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Overview
Total protection against fleas and ticks Fleas aren't just annoying — they're a genuine health problem for your cat. Frontline Plus for Cats is a fast-acting, long-lasting topical treatment that doesn't only kill adult fleas. It breaks the whole infestation cycle by targeting eggs and larvae too, so the next generation never hatches — in your cat's coat or in... Read the full details ↓
Shipping & returns
Free shipping on US orders over $45. Most unused items can be returned within 30 days. See our refund policy for details.
Total protection against fleas and ticks
Fleas aren't just annoying — they're a genuine health problem for your cat. Frontline Plus for Cats is a fast-acting, long-lasting topical treatment that doesn't only kill adult fleas. It breaks the whole infestation cycle by targeting eggs and larvae too, so the next generation never hatches — in your cat's coat or in your carpet.
Kills fleas, ticks & chewing lice
Waterproof after 24 hours
One application lasts 30 days
For cats & kittens 8 weeks and older, weighing 1.5 lbs or more.
About this item
- Kills every flea life stage — adult fleas, flea eggs and flea larvae, so an infestation can't rebuild itself
- Kills ticks and chewing lice — including ticks that may transmit Lyme disease, Rocky Mountain spotted fever, ehrlichiosis and anaplasmosis
- Waterproof — stays effective after bathing, water immersion or sunlight exposure
- Two active ingredients — fipronil kills adults, (S)-methoprene stops eggs and larvae developing
- Gentle enough for kittens — approved from 8 weeks, and safe for breeding, pregnant and nursing cats
- No prescription needed — one easy spot-on application per month
Why cat parents choose Frontline Plus
🐾
Breaks the flea cycle
Adults, eggs and larvae all get hit — the reason infestations stop coming back instead of just pausing.
🛡️
Tick & lice defence
Kills all tick life stages plus chewing lice, protecting indoor and outdoor cats alike.
💧
Waterproof formula
Once dry (24 hours), grooming, bathing and rainy adventures won't wash it off.
🐱
Safe for kittens
Cleared for kittens from 8 weeks and 1.5 lbs, and for breeding, pregnant or nursing queens.
6
Six months of protection in one box
Each box contains 6 applicators. One application covers your cat for a full 30 days — half a year of cover, no repeat ordering.
How it works
Frontline Plus is a dual-action formula. Fipronil collects in the oils of the skin and hair follicles, then releases steadily onto the coat — which is why one dose keeps working for weeks.
| Fipronil — kills adult fleas, ticks and chewing lice | 9.8% |
| (S)-methoprene — insect growth regulator; stops eggs and larvae developing | 11.8% |
How to apply
- Open the applicator. Lift and remove the plastic tab, peel back the foil, then hold the applicator upright with the foil side facing you and snap the tip.
- Find the spot. Part your cat's hair between the shoulder blades until you can see skin — somewhere they can't turn around and lick.
- Apply. Place the tip just above the skin and squeeze the entire contents into a single spot. Apply directly to skin, not on top of the coat.
- Let it dry. Avoid touching the treated area until it's fully dry.
- Repeat every 30 days for continuous, year-round protection.
Specifications
| Brand | Frontline (Boehringer Ingelheim) |
| Form | Topical liquid (spot-on) |
| Count | 6 applicators — 6-month supply |
| For | Cats & kittens, 8 weeks+, 1.5 lbs+ |
| Duration | 30 days per application |
| Actives | Fipronil 9.8%, (S)-methoprene 11.8% |
⚠️ Important safety information
- Cat product only. Never use a dog formulation on a cat — the dosages differ and dog products can be dangerous to cats.
- Do not apply more than one dose per cat per month.
- Individual sensitivities are rare but possible. Temporary irritation at the application site can occur; if it persists or worsens, contact your vet.
- Harmful if swallowed. Causes eye irritation. Avoid contact with skin, eyes and clothing. Wash hands thoroughly after handling.
- Children should not apply this product. Keep out of reach of children and pets.
- Read the full label and directions before every use.
Frequently asked questions
How quickly does it start working?
Fipronil begins killing fleas within hours of application. You may notice fleas rising to the top of the coat as they die — that's a sign it's working, not a sign of a new infestation.
Can my cat get wet after treatment?
Yes, once it's dry. Frontline Plus is waterproof after 24 hours and stays effective after bathing, swimming or rain.
Do I need to know my cat's exact weight?
No. Frontline Plus for Cats comes in a single strength for all cats over 1.5 lbs, so there's no size chart to work out.
Is it safe for a pregnant or nursing cat?
Yes — it's approved for breeding, pregnant and lactating queens, as well as kittens from 8 weeks old.
My cat licked the application site. What now?
Applying between the shoulder blades makes this unlikely, but if it happens you may see brief drooling or a bad taste reaction. It typically passes quickly. Contact your vet if symptoms persist.
Does it need to be reapplied every month?
Monthly application is the recommended schedule for continuous flea, tick and chewing lice control — particularly where there's a high reinfestation risk or flea allergy dermatitis.
Keep your cat itch-free with Jollumi
Don't wait for the scratching to start. Order your 6-month supply today and stay ahead of flea season.
This is an EPA-registered pesticide product. It is a violation of federal law to use it in a manner inconsistent with its labeling. "#1 name in flea and tick protection" and "trusted for over 20 years" are manufacturer claims based on data held by Boehringer Ingelheim. Always read the product label before use, and consult your veterinarian with any health concerns about your cat.
Enriching the lives of pets with elegant, quality products that reflect your love. Questions? Email our support team — we're always happy to help.
Highlights
What makes it different
Three things worth knowing before you buy.
One dose, 30 days
A single spot-on application protects for a full month and is waterproof after 24 hours, so grooming and bathing will not wash it off.
Safe from 8 weeks
Suitable for kittens from 8 weeks old and for breeding, pregnant and nursing cats. No prescription needed.
Common questions
4 of 4 articlesHow fast will it ship?
Most orders leave the warehouse within 1–3 business days and arrive within about a week anywhere in the US. Tracking is emailed as soon as your order ships, and orders over $45 ship free.
What if it isn't right for my pet?
Contact our support team as soon as possible and we'll help with a return or exchange. Items need to be unused and in their original packaging.
Is it covered by a warranty?
Manufacturer warranties apply wherever the brand offers one, and we'll help you start a claim. Warranty details for each product are in its description.
Can I talk to someone before I buy?
Of course. Email us from the Support page and a real person will reply, usually within one business day.
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