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Johnson's 4fleas Spot on Cat

A fast-acting spot-on flea treatment for cats over 4kg, 2 vials giving up to 2 months cover

£10.15

· tracked · UK mainland estimate · 14-day promise

UK delivery £2.99 · free over £39

Secure checkout by Stripe · Card, Apple Pay & Klarna

On the dose count

This is specifically for cats over 4kg — Johnson's give no reduced-dose version on this pack for smaller or kitten-sized cats, so a cat under that weight or younger than 8 weeks needs a different product, not a partial dose from this one.

Secure checkout

Tracked delivery

Easy returns

Why we chose it

Two vials in one pack means two months of cover bought at once, which is simpler than reordering a single-vial pack every four weeks. Naming the active ingredient, imidacloprid, rather than just a generic flea claim also makes it easier to check against anything else a cat might already be using.

— Matt, founder

Specifications

Brand: Johnson'S
Pack size: 2 vials
Protection: Up to 4 weeks per vial
Suitable for: Cats over 4kg, over 8 weeks
Active ingredient: Imidacloprid

Full description

A flea treatment that only kills fleas already on the animal leaves the surrounding area untouched, which is why the contact-and-surrounding-area claim on this one matters more than "kills fleas" alone.

Johnson's 4fleas Spot On Cat is a fast-acting spot-on containing imidacloprid, intended to kill fleas on contact on the cat and in the surrounding area. Each vial gives up to 4 weeks of protection, and the pack contains 2 vials, for cats over 4kg and over 8 weeks of age.

Fast-acting spot-on, kills fleas on contact
Contains imidacloprid
Also targets fleas in the surrounding area
Each vial: up to 4 weeks' protection
2 vials per pack, up to 2 months total cover
For cats over 4kg and over 8 weeks old

On the dose count. This is specifically for cats over 4kg — Johnson's give no reduced-dose version on this pack for smaller or kitten-sized cats, so a cat under that weight or younger than 8 weeks needs a different product, not a partial dose from this one.

Who it's for: owners of cats over 4kg running routine flea control who want two treatments' worth of cover — roughly two months — in one pack.

Delivery

Tracked UK delivery — your estimated arrival date is shown above and updates automatically. Standard delivery £2.99, and free on orders over £39. Full details on our delivery information page. Delivery information

Returns

14 days to change your mind, no interrogation. Items need to be unused (sensory products unopened, for hygiene). Full details on our delivery & returns page.

Payment

Secure checkout by Stripe — cards, Apple Pay, Link and Klarna. We never see or store your card details.

Common questions

What's the active ingredient?

Imidacloprid.

How long does one vial last?

Up to 4 weeks per vial, per Johnson's.

What size and age of cat is it for?

Cats over 4kg and over 8 weeks of age.

How many vials are in the pack?

2, giving up to 2 months of cover in total.

What size is it?

2 vials. Every measurement we hold for this product is in the specifications above.

How long does delivery take?

Your estimated delivery date is shown above and updates automatically. UK orders are sent tracked — standard delivery is £2.99, and free on orders over £39.

How do I track my order?

As soon as your order is dispatched we email you a tracking link, so you can follow it all the way to your door.

What if I need to return my order?

You have 14 days from delivery to change your mind. Just email us with your order number and we’ll send the return steps the same working day — see our delivery & returns page for details.

Why buy from Giddy Pets?

Carefully selected by pet ownersEvery product is chosen and quality-checked by people who actually live with dogs, cats and small pets.
Tracked delivery on every orderUK delivery with tracking as standard — and it’s free when you spend over £39.
UK customer supportReal, UK-based humans read every email — usually Matt, the founder. No bots, no ticket numbers.
Easy returns14 days to change your mind, no interrogation. If it’s not right, we’ll make it right.