Pinpoint your DNA! Your GPS Origins kit contains easy-to-follow instructions, cheek swabs for collecting your DNA samples, and a postage-paid envelope for returning your samples to our lab (U.S. customers only). Using a DNA sample you provide through a simple cheek swab, our qualified laboratory tests more than 80,000 unique genetic markers. Cross-checking that information across dozens of gene pools and more than 900 reference populations, we use your DNA to create a detailed report about where your family originated and how it migrated around the world to where you are today.