The oil naturally purified to get rid of the fishy smell and taste that turns some dogs and folks off. It's also Accredited through the National Animal Health supplement Council (NASC) and independently analyzed by ConsumerLab to confirm potency, purity, and not enough mercury. A good quality joint health supplement, https://keeganufoxf.win-blog.com/14252208/how-much-you-need-to-expect-you-ll-pay-for-a-good-herbal-dog-wellness-treats