**Formerly Formula SF722**

Maintaining a healthy balance of gut flora is a key component of overall health.* Studies going back 50 years demonstrate that fatty acids are effective in supporting a healthy gut flora.* The undecylenic acid in Thorne's Undecylenic Acid is six times more effective than caprylic acid. Its efficacy has helped make this product one of Thorne's best-selling products for more than two decades.