I bought a half ounce sample of their "Pure Capsaicin Crystals 16,000,000 SHU" before committing to larger quantities. Thank goodness I started small to check them out. What they sent me was a joke. No crystal at all but recompressed powder that smelled strongly of vanilla and had very little heat. Compared to many samples of real crystal capsaicin I have on hand, I put this fraudulent product at 2 or 3 million SHU at best.
A polite inquiry inquiring about shipping of the correct product resulted in an extremely rude and condescending reply. They expected me to send this garbage back to Australia at my expense for a refund when it should have been flushed down the toilet.
I did return it but I had to file a dispute with PayPal to get my refund and return shipping paid.