23andMe has rigorous standards that ensure high-quality results. Our team of scientists and medical experts use a robust process to develop genetic reports for our customers. Here are specific examples: With one of the largest reference datasets in the world, 23andMe provides customers with one of the most detailed and accurate ancestry breakdowns on the market. Our algorithms make ancestry estimates based on probabilities and they’re generally very accurate, but your results are not set in stone. We are always trying to improve and refine these estimates. Our Genetic Health Risk, Carrier Status,Pharmacogenetics reports meet FDA requirements. This means that each variant in those reports demonstrated >greater than99% accuracy and reproducibility when tested under different laboratory conditions. This article provides additional information.