When it comes to SR17018, FTIR analysis provides more accurate results compared to HPLC, so long as no contaminants are found (as you can see there were none found in ours). That being said we will be additionally HPLC lab testing (3rd party American) each batch going forward and the current batch is in the process of being 3rd party tested. However, having worked with this lab for a few years, the HPLC they provide us with always checks out when we third party test (remember this is not like the typical lab most SR on the market comes from), so we are confident in the report (and from personal research).