It is effective mainly when the powder stays for a few days. After 9 days since I returned, the ants disappeared.

I had fleas and I saw here in the comments that it did the job. Not only it didn't. After a week, I felt them multiplying and biting me all night long. It became a nightmare for me, every day without sleep. I not only regretted the money because I had bought a kilo, but I also developed a great phobia. I see a bite and I get scared. In the end, I had to hire a professional for flea extermination and found salvation. The conclusion is, do not rely on powders when there is a serious problem in the house. It requires a professional to clean the house!

I have an issue with cockroaches and I couldn't deal with them at all, not even boric acid worked. As soon as I put this powder in certain key areas, the cockroaches jumped out on their own. Incredibly effective, I didn't expect it. I would buy it again.

Excellent! I needed it at some point when I had an issue with ants and not only did they die from eating the powder, but they also smelled it and didn't come back! And along with that, it killed other insects, even flies... Also, I recommended it to a friend who had fleas, and she got rid of them in no time.

Very good with ants mainly but also works with cockroaches. I use it perimeter-wise in the yard and nothing walks around the house. The only downside is that if I wash it with water, it disappears and I have to apply it again. However, it does the job.

I had two holes from ants in the corner of the stairs... Medium-sized brown ones and large flying ones... There were many outside, like a wasp nest. As soon as I sprinkled the powder, they started running in every direction. I ended up sprinkling more and whatever came into contact within a 1.5-meter radius died... Every day, I collect a handful of dead ants. Very effective if you put it in their nest. I haven't had the chance to use it in a different location, like pots, for example.

Really excellent! Although it is harmless, it is incredibly effective and easy to use! It's worth it!!!!!!!