Karlsten Ant Killer Spray | Extra-Strong Cypermethrin | Fast-Acting Red & Black Ant Killer | Indoor & Outdoor Insect Control | Long-Lasting Protection | 500ml

Repellent and Killer of Spiders!

After extensive research on bed bug treatments, I can confidently say that the effectiveness of any product depends on your preparation. Simply spraying a little on your mattress won’t cut it—you need to remove all clothes from cupboards, spray inside them, treat cracks in the floor, the entire mattress, and all parts of the bed frame. However, the bugs can be hiding anywhere and are attracted to the carbon dioxide, so just because you don't see them, doesn't mean they are gone. The pests can hibernate for 6 months without food so it is a pain. This Bed Bug Spray does kill on contact and provides some lasting protection, but if you have a heavy infestation, one bottle won’t be enough. In my case, I had a smaller bedroom with a single bed that was heavily infested, and even with professional-grade treatments like Provecta, C40 WP, and Cimetrol RFU, it still took several applications over multiple visits to fully resolve the issue. While this is a good starting point for minor infestations or preventative treatment, you’ll need several bottles for anything more serious. By the time you buy multiple bottles, you might be better off investing in professional treatment. That’s the main reason I’m giving this 4 stars instead of 5—it works, but it’s pricey for the amount you’ll likely need. Overall, a good product, but be prepared to invest in multiple applications for best results. I also contacted the helpdesk to confirm I could spray this on the mattress and they confirmed, their customer support was very responsive and helpful.

It doesn’t kill giant spider’s immediately but it will eventually. It makes them uncomfortable enough to move so you can catch them and put them outside. Have sprayed under floor vents and potential entrances from outside. Have reduced giant spiders to nothing within 10 days. Before using this spray I had maybe four giant spiders in the house scurrying across the living room floor and kitchen ceiling each night. After spraying entrance zones inc doorways, wall vents and room corners, after a few days the spiders disappeared. I think for large spiders this spray is a huge deterrent rather than something that kills them. I personally do not like killing spiders and before this spray, I tried to remove each spider but this wasn’t effective. Highly recommend spray. Allow a few days for results.

Sprayed it directly on a spider and saw it die, the product itself is good. But the bottle is very defective. The spray nozzle wasn’t working even though it was “open” nothing would come out for a while. Not to mention Yoon that it drips a lot while spraying

I suddenly found i had Ants. 1 or 2 sqeezes of the Ant Killer and they dissapeared i couldnt believe it. Nothing works that fast i thought. My partner found Ants around the dustbin and again 1 or2 squirts and they were gone.i couldnt believe anything could be as fast. But they never came back. Wonder Product .

Useless. I sprayed a spider directly three times, and it still kept crawling around like a champ for over 10 minutes without dying. I want a refund.

Bought this few times now, very helpful to cope with the fear

This bed bug spray works well and is easy to apply. Does what is says on the tin! The spray bottle is simple to use, and it covers a good area without much effort. It gives peace of mind knowing it kills on contact and can be used on mattresses and around the home. It feels like a strong and reliable product, and it’s good to have on hand if needed. The 500ml size is also decent and lasts a while. Overall, a solid product that does what it promises and is easy to use.