I'm looking for guidance/recommendations on how to utilize a third-party source/lab to verify products identity/quality/quantity. I've seen Janoshik is a heavy hitter in lab testing but are there any other reputable companies to use as well? If anyone has any experience on who to go through and/or tricks and tips on submitting products to test I'd really appreciate it. Looking to contribute to the form/community on source reliability as well as product quality. There is so much knowledge and experience on this site so I'd like to help out as well. Thanks in advance!