I tried before, a friend from hk gave it to me. Surprisingly effective, I thought it was an expensive product but no, its affordable and low cost indeed. Now i found it on w w w.amazon.sg/Chinchex-Bed-bugs-Insecticide/dp/B082TVPHPG/ref=sr_1_1?keywords=chinchex&qid=1579660063&s=gate way&sr=8-1
2 weeks time and i see the difference,,getting rid of bed bugs give me a much better sleep.