Introduction
         Genetic testing is a technology for testing personal DNA genetic polymorphism and genotypes by testing the cells extracted from human blood, other body fluids or tissue .
         Genetic testing has two main objectives, one is disease diagnosis, for example, the diagnosis of leukemia classification, and so on, have to use related genetic testing . The other is disease prevention, to test the genotype and certain genetic polymorphism of healthy people,  and then analyse the possible risk between genes and disease in order to give proper guidance to people and try to avoid diseases.
        In recent years, genetic testing has been used to detect individual genetic polymorphism related to adaptability on food, nutrition supplements or cosmetics so as to guide peoples nutrition and health planning. 
        In foreign countries, genetic testing for healthy people has about 6 years’  history. Once in the process of human genome mapping, two American scientists have predicted that the future of medical science wouls be based on testing the genetic polymorphism. At present, only in the United States, Britain, Belgium, and several countries, genetic testing for healthy people is carrying out. In the United States, each year, an average of 4 million people do genetic testing to check their disease.

The accuracy of genetic testing 
         Once the susceptibility geneis determined, the disease can be predicted. 
         But if people with the certain susceptibility gene would get the disease or when will get the disease ,no onecan tell .
        Genetic testing is assessing the incidence of a disease on the basis of a large amount of people,  and is closely related to people’s individual living environment.  It is not absolutely that people with a susceptibility gene would get the disease in the future, but by testing and discovering certain types of disease susceptibility so as to provide targeted health care for people.

The application of genetic testing
        Given the technical and cost aspects of the status , not everyone needs to be done predictability of the risk of disease gene detection. The following people could begin to consider:
        People with a family history of related diseases and would like to understand their risk of illness;
        Or have a history of clinical manifestations, would like to know whether the disease caused by genetic abnormalities or not;
       Without the above situation, but would like to know the risk of illness.
        For genetic testing of nutrition and beauty, suitable for all those who want to enhance the quality of life.

The gene detection method
      We mainly use the method of PCR and sequencing , which is the worlds most accurate detection method. Its accuracy of analysis is above 95 %, and is a standard genetic testing method approved by the FDA of the USA.
        This method can pinpoint the location of SNP sites, and accurately isolate gene type, but is  time-consuming cost a lot .

Sampling methods
        Collecting samples is your oral mucosa cells, the subjects do not have to visit the laboratory, samples can be mailed to us.
        Each one needs a test sample, that is because of the limited number of each sample can only do an oral test.
        Oral sampling is quite simple, non-invasive, completely painless,
        Self-sampling method is: first gargle with water (do not use mouthwash), and then use sampling Cotton in oral cheeks shining inside the 15 (the time by wiping down on, both inside and outside is not clean) to ensure that Cotton each side are exposed to oral mucosa.  Cotton is dried to be placed in the sample box, mail it to us.
        We used by the Cotton sampling for the collection of oral epithelial cells and design, after disinfection and aseptic packaging, and oral contact with the local Yaomian is created by and will not cause pain or scarring.
        For some special testing, you may need the blood samples.  Whether youre a test or all items must be collected five ml blood.  Blood go to qualified medical institutions, taken from practising nurses.
        Please nurses reference to the following steps: disinfection of iodine and alcohol after blood collection sites, or dual-use disposable syringes with needles for blood collecting blood about 5 ml, blood samples will be kept in a purple lid of the tube (containing EDTA anticoagulant).