How to Complete a DNA Mouth Swab? | Face IT DNA Testing Services | Facebook If you want to know how to complete a DNA mouth swab, then you must visit this link: https://youtu.be/zQPzQrG9FFo. In this video, we will assist you in completing a home DNA collection using our collection kits or using your own collection supplies. We’ll also give helpful tips on shipping samples for infidelity testing and we’ll cover new collection techniques that help minimize recollections due to a lack of DNA on the cotton swab. See more: https://faceitdna.com/how-to-complete-a-dna-mouth-swab/