The easiest way to judge the quality of a company is by its transparency. Does the information you get online include the genetic studies on which it's based? Does the company tell you what kind of gene-analysis technology it uses? Above all, be sure the lab it uses is certified by CLIA (Clinical Laboratory Improvement Amendments), the industry standard.
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The 2014 Adventure Issue
From Iceland's Highway 1 to Utah's Canyonlands, an epic itinerary for modern explorers.
Plus: Building a Bigger Action Hero
ON NEWSSTANDS NOW
Duke Lacrosse and the Fog of Scandal
How Thailand's Most Notorious Prison Became a Fight Club
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