[RhodesianHunter]

> and run the necessary mass spectrometry and other tests per batch to ensure quality

As someone with a background in supply chain security and fraud please DO NOT put anything purchased from China in your body without thorough testing.

[reasonattlm]

Testing per batch is needed when ordering direct from any manufacturer. In my experience there isn't any real difference in quality and order fulfillment between Chinese and non-Chinese manufacturers when it comes to extracts and research chemicals, provided you stick with groups that have good reputations in Alibaba.

So all that caution that most people feel regarding Chinese manufacturers should be spread out a little more and applied to those closer to home as well.