Hover to zoomJohnson's 4fleas Spot on Kitten
A 2-treatment spot-on flea pack for kittens and cats up to 4kg, over 8 weeks old
£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 weight and age limits
These are the two figures actually printed on the pack — 4kg and 8 weeks — and Johnson's don't give a lower weight cut-off beyond the age, so a very small or unwell kitten is a question for your vet before you apply anything, spot-on or otherwise.
Why we chose it
Two vials in one pack means you're not back at the shelf a month later for a single treatment. The 4kg and 8-week limits are printed clearly on the pack, which matters more than usual with a kitten-specific product — it's easy to grab the wrong size by accident.
— Matt, founder
Specifications
- Brand
- Johnson'S
Full description
A kitten's first flea treatment is usually the first time an owner has to trust a product completely — there's no obvious sign the fleas that would have turned up simply didn't, and a spot-on works or it doesn't without much visible evidence either way.
This one is a fast-acting spot-on containing imidacloprid, applied to the skin rather than given by mouth, and Johnson's say it kills fleas on contact with your cat and in the surrounding area, with up to two months of protection from the pack. It comes as two vials, each giving up to four weeks of cover, and it's for cats and kittens up to 4kg and over 8 weeks of age.
- 2 vials (2-treatment pack)
- Each vial gives up to 4 weeks of protection
- Kills fleas on contact, on the cat and the surrounding area
- Contains imidacloprid
- For cats and kittens up to 4kg, over 8 weeks of age
On the weight and age limits. These are the two figures actually printed on the pack — 4kg and 8 weeks — and Johnson's don't give a lower weight cut-off beyond the age, so a very small or unwell kitten is a question for your vet before you apply anything, spot-on or otherwise.
Who it's for: owners of a kitten or small cat starting flea protection for the first time, who want a full two-month cover from one small pack rather than buying single treatments as they run out.
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 age can this be used from?
Cats and kittens over 8 weeks of age, up to 4kg.
How many treatments are in the pack?
Two vials, each giving up to 4 weeks of protection — so up to 2 months of cover in total.
What's the active ingredient?
Imidacloprid.
How is it applied?
As a spot-on, applied to the skin — Johnson's describe it as fast-acting, killing fleas on contact on the cat and the surrounding area.
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.
Not ready to buy? Get the free welcome kit.
Practical pet-care guides — new puppy & kitten checklists, feeding and grooming planners and more. No spam.
🐾 Not sure what to get them? Take the 2-minute pet quiz →
This is an everyday pet product, not a veterinary treatment. For any health concerns, please speak to your vet.
You might also like

Vetiq Flea Guard Granules
VETIQ Flea Guard edible pet granules with B vitamins, yeast, zinc and garlic, 60G
£8.64

Beaphar FIPROtec Spot-On Cat
Four spot-on treatments that kill fleas and ticks on cats over eight weeks
£15.03

Johnson S One Dose Easy Wormer
A single-dose wormer for small dogs and puppies, killing roundworms, tapeworms and hookworm
From£5.99

Beaphar Fiprotec Spot on Dog
Spot-on flea and tick treatment for dogs 20–40kg, six treatments per pack
From£16.07
Helpful free tools & guides
Reviews
No reviews yet — honest ones only, so be the first.