Don't buy it. It's a scam.

You're not buying a product, you're buying re-sell rights to an ebook. It works kindof like a pyramid scheme. They're relying on making sales leads, not about helping you pass your test. It sounds like they're pitching the dillution method like it's a hidden secret. You don't need that.

You could prolly spend some time browsing the drug testing forums here and find 50 times more info for free than whats in that 'report'.
Go to the drug testing forum and read up :thumbsup: