It was EXTREMELY effective because the itching was gone in 1 week, and I have been cured for 3 years now. Don't believe everything you read on the internet. If you are suffering from Scabies then you might want to try the grapeseed oil by itself to see if it works. At the time I was suffering so badly that I did not want to waste any time experimenting, so I combined the grapeseed oil & Diatomaceous Earth. Let us know what happens in your experiment.