23 and Me is a DNA testing service company. They have two main products. One is ancestry, and the other is health. Customers may choose either ancestry, health, or both. They recieve a sample collection kit and after a few weeks, they get the results. You also have the option to download the raw DNA files to upload to other DNA sites.
Generally 23andMe is more reliable for people of Asian descent compared to other companies such as MyHeritage and Ancestry, which focuses more on European ancestry.