How does IFOS testing differ from the Pure Check testing?
IFOS and Pure Check are very similar. Both are third-party testing programs to evaluate fish oil quality, purity and label claims. The reference standard for both programs is the CRN Fish Oil Monograph, which is considered the benchmark for pharmaceutical quality oils. The only major difference between IFOS and Pure Check is that IFOS is voluntary and the manufacturer does not have to test every batch nor are they required to post any batches that test poorly. Through Pure Check, Ascenta tests every batch of product and posts all results on its website.