We buy pure capsaicin regularly from this company. Due to the nature and use of our clients we have ALL our bulk purchases independently assessed by a lab. 100% of the the time it has come back 100 % purity and higher or as stated shu. We could not be happier ( as our clients) with our purhases of pure capsaicin. We have tried other overseas suppliers, but always return back to these guys. Def a superior product than other we have tried. Keep up the fantastic work.