It should be clarified that the description says 2 pcs of 2.5 g, while I received one sachet of 2.5 g.
The merchant explained to me that from the company it now comes as a sachet and is sold individually, not as a box with the two sachets.

Very good, I sprayed it on the balconies and the next day I saw a dead cockroach. I saw dead ones again after a month, even though I have washed the terrace many times, so it has good durability. For dilution, I recommend one 2.5g sachet in 2 liters of water at most; I think even better in 1.5 liters.

Super!!! In 1.5 to 2 liters of water I put 1 sachet. I found dead small and large cockroaches inside and outside the house within 1 week

Do not buy it for bed bugs, for any reason. It does nothing to them, you will still have them. However, I got rid of another insect that was under the floor, winged ants - gnats. I sprayed and the whole nest came out and died.

It does its job, the active ingredient is what matters to us and it is the correct one, BUT, it is not from Bayer. That's why three stars. I mainly used it for ants and small flying insects in the kitchen. It made them disappear. In time, we will also see how long its effect lasts.

I used it in a house in Volos in an area with a huge problem. The ladies had come in from outside. I didn't spray, but I mopped. After cleaning well, I poured the packet into a bucket with the corresponding amount of water and mopped almost the whole house, corners, around the walls, kitchen, and bathroom. The remaining water I poured around the house, at the entrance, and in the yard. The next day I found many huge ones and some small ones inside the house. All completely dead. The next day I didn't find any. I stayed in the house for 7 days and didn't see any again. After that, I don't know.

Excellent! The first results appeared in 2 days.. Lots of dead gnats and insects. I put one sachet in 4 liters of water, not 5.

Since I have been taking it for years, I want to inform you that since its quality has now changed compared to the old ones, when you buy it, make sure that the production date has not exceeded 6 months; otherwise, its effectiveness is very low. When fresh, it lasts two to two and a half months; after a year from the production date, it lasts about a month

In November, a huge cockroach passed over the carpet and spraying had been done in September. It's not worth the money, no

Guys, there's no need to discuss it. It's the best. It costs €6-8 for two sachets. For 5 liters you use two sachets. If you put two sachets in 3 liters, then we're talking about genocide!! I first put the powder in a small bottle of water (halfway full) and mix it vigorously so it dissolves completely. Then I put it in the sprayer along with the rest of the water. Let's not forget we're talking about cockroaches. Real enemies with whom we are in open war. We spray every month, even though the instructions say every 3 months. After all, it's worth paying €6-8 if it means you... WIN THE BATTLE. With militant greetings, comrades.

The best I have ever tried. Summer 2024, first time at home and there was a huge problem with giant flying insects all over the neighborhood coming from the drains. At first, I got a liquid from an agronomist, then a specialist came and sprayed, but still every night I would go out on the balcony in fear. Finally, I got k othrine and until today, 27/06/2025, I find only a few dead insects on the balcony. However, I always spray after washing and mopping inside and outside to have peace of mind

In a house that had been closed for years and had everything inside, it eliminated everything. Now I throw in a packet every 6 months and I don't have mosquitoes and cockroaches, which I had a huge problem with, especially with the mosquitoes due to the garden

the best for mosquitoes, wasps, and I don't know what else, really the best I have tried in recent years

I have been buying it for years...nothing like those from the supermarket...the cockroaches stop appearing...However, it also claims to work for bedbugs and other insects...but this is NOT true...neither for bedbugs nor for anything else...only for cockroaches...the bedbugs were walking around on the sprayed areas...

You dissolve it in water according to the instructions, spray where needed, and you don't have to worry about pests for 2-3 days. Great effectiveness against cockroaches, flies, mosquitoes, spiders, and other small insects. Pet-friendly. The most effective product I have ever used. I even use it in my country house and it has given me peace of mind!

We had an issue with cockroaches during the summer months. I sprayed twice during the summer and until today we find them upside down and dead. I have not tried other similar products but just the fact that I did not have to kill a cockroach all summer, I recommend it.

After searching, I found that the company mentioned that it found a way to increase effectiveness with half the amount of active ingredient. Translation: We reduced the active ingredient and it costs us less... So for the same result, use less water, e.g. instead of 2.5 liters per sachet, use 2 liters per sachet to continue seeing good results. 28/02/2026

We have been using this specific medication for over 15 years and it is truly the most effective for cockroaches. We spray the outside of the house, the shutters, and the yard and we are cockroach-free for at least a year. There have been years when we didn't spray and still found dead cockroaches. This year we had a terrible issue with spiders and I noticed that their population also significantly decreased, although it didn't completely eradicate them. It doesn't kill mosquitoes and especially ants for any reason, but I give it a 5/5 because it eliminates cockroaches - which are my biggest problem. Please note that after spraying, it is advisable not to wash the surfaces for a few days.

Good product. I bought it for ants. I spray it every spring or whenever they appear. Outside the house, but also inside the house. Effective for ants and spiders. I like that it comes in sachets. It's good, I will buy it again!

After spraying in the garden, balcony, stairs, and light fixtures, it stayed without raining for about 3 days. Then it rained and in some areas it washed off. The result with cockroaches is that so far I have found 3 on the balcony lying on their backs in a semi-conscious state, slightly moving their legs. So it does something with the cockroaches, although I would prefer them not to have reached the balcony at all. I haven't seen any difference with mosquitoes

Very good product. Perhaps the best I have tried after testing three different ones. If you live in a detached ground floor house, make sure to spray mainly the drains and you will get rid of the problem.

-I am returning to mention something I noticed along the way. It would be good to make sure to spray once a month. In my case, after 2 months, the "cases" started again. (15/08/23)

First of all, very affordable product, it is not harmful to pets and as for its effectiveness, while we thought we had cleaned with the previous one, when we sprayed with this one, we found two dead bodies upside down

Literally no comparison to supermarket products, if you spray it in an area where insects pass, you find them turned upside down a little further the next day.

I did not follow the dosage instructions, I poured it all into a large spray bottle with a cap and it does its job.

100% odorless

I have been using it for 3 years in a house inside a field.
Usage 1 to 1. So, 2.5 grams in 2.5 liters of water....5 grams in 5 liters of water. For a major problem, try using 1-1.5 liters. For example, 5 grams in 4 liters. No problem with animals. Just let it dry. So, remove animals and children.. Spray and wait for it to dry. It leaves a white residue and once it dries, you can see where you applied it. In a room that I sprayed last summer but is not used frequently, it still kills. Spray doors and windows inside and outside.. Corners and drains or other openings. I hope I helped.

I had a serious problem with cockroaches in my house. I followed the instructions diligently for as long as needed (one month, spraying once a week, correct ratio of product to water), and my problem was solved. I am writing this review one year later. It saved me and I didn't have to spend a lot of money on repairs.

I have been using it for 3 years... Back then, it worked on cockroaches and bugs... Now, it does very little... Be careful... it's not suitable for fish... I used it because it claims to be effective against crawling insects, but more of them appeared... However, compared to insecticides from the supermarket, it is better.

I have been using it for at least 2 years combined with a liquid product and I am satisfied. The cockroaches, once they come into contact with the product, die shortly after

It really eliminates cockroaches, ants, spiders, and generally any insect that walks in the garden, however mosquitoes didn't notice anything (although the product's instructions do not mention anywhere that it is for mosquitoes, even though I read in many reviews that it affects mosquitoes too). Overall, I am satisfied with its performance.

From the very first time, one was found dead and the rest disappeared. After a year of using it every 2-3 months, I haven't seen a single one.

Effective and odorless! I used it in my country house, both indoors and outdoors. The next day after application, I saw dead insects everywhere. It is much more economical than ready-made sprays available in the market. Anyway, they all contain pyrethrins. One sachet dissolves in 5 liters of water, or you can use commercial spray bottles (e.g. azax) which are about 1 liter and add 1/5 of the sachet. Definitely use protection with a mask, goggles, and long clothing.