Dry your mouth: Before you begin, it’s a good idea to have a clean and dry mouth. Refrain from eating any food, drinking any liquids, brushing your teeth, or using mouthwash for at least 30 minutes before collecting the sample. This ensures that the sample will be correct and not altered by something else.
Open the Kit: When your mouth is well prepared you may open the kit for saliva collection. It usually contains everything you need in this kit. This means Today you'll need to step through of your saliva to build the DNA polymerase and expose your entire genes. Answer Hold the swab by its handle, which is the part you do not put in your mouth.
Put the Swab Back in Tube: After obtaining the saliva, replace the swab carefully into the tube for collection. Be sure to tighten the lid so it doesn’t leak. It’s also wise to write your name and the date on the tube. Adds a Works for the lab needs to know whose sample you just sent them for testing
The mouth swab does have many different uses. Genetic testing is one of the most common reasons. When you take a sample of your DNA with a mouth swab, scientists can test that DNA. They can learn critical information about your health — and even your family history. This can inform you about traits you could have inherited from your parents or grandparents.

With a home saliva collection kit, however, all you have to do is follow the steps we outlined above. Once you collect your sample, you can return it to the lab for testing by mail. You usually receive your results back within a few weeks. Some labs can even give you your results online, which makes it even easier!

Research has also indicated that mouth swab drug testing can be just as accurate as a urine test. But there are a few key reminders. For example, the detection window for mouth swab tests is generally shorter than for urine tests. This means that, if someone wants to know if a drug was used days earlier, a urine test may be more effective.

Without going through these steps, you can get wrong results. For example, eating or drinking something before gathering the sample can alter the amount of DNA in your saliva. All it takes is for you not to properly label the tube, and your sample can be confused with someone else’s sample, not good.