Curcumin, the compound in turmeric that makes it yellow, has been used for thousands of years for its many medicinal properties. It is anti-inflammatory, neuroprotective, helps heal wounds, and has been implicated in cancer treatment. For these reasons, the market for curcumin is going up, up, up. But the flip side of this popularity is that it attracts unscrupulous actors to come in to try to cash in while cutting corners on quality. Read more.