I just wanted to say I placed my order with Jeremiah at Zenith Biopeptides and it was a good experience. He goes live on tiktok quite a bit and I am just glad to have found him and him answer my questions (Still new to this). He does do testing and my order was well packaged and arrived in a timely manner. His prices are fair (from what I've seen). Just wanted to put this out there. :) Good luck with your research!