Groupon offers the DNA Kit 30% Off for $55. Free shipping. Features: This popular DNA testing kit allows customers to discover their family origins and find previously unknown relatives. Here’s how it works: take the DNA test at home with the quick 2-minute cheek swab, then mail the sample in the provided envelope to the MyHeritage DNA lab. Your sample will undergo analysis in the lab and your results will be available on your secure online MyHeritage account in 3 to 4 weeks.