This product collects saliva samples secreted by the mouth through the sampling tube, and mixes the collected saliva and preservation solution evenly to ensure the integrity of DNA within the saliva samples and long-term preservation under room temperature conditions.

Sampling method.

①. Before collecting DNA samples, do not chew food, drink tea, alcohol, smoke, chewing gum, etc. within 30 minutes of collecting saliva DNA samples. Relax the cheeks before spitting, rub gently for 30 seconds and spit out the saliva. Use cellular oral mucosa shedding, saliva spitting, saliva DNA sample sampling tube.

②, gently spit out the saliva secreted in the mouth to the collection port of the saliva collector, paying attention to the sampling saliva to try not to appear too much foam.

③, collect saliva knowing that the saliva in the sampling tube reaches the scale line shown in 2 ml.

④, the sampling tube with preserved liquid is fixed evenly on the sampling mouth, the fixed type will make a click sound, while if the preserved liquid flows evenly into the sampling tube, it means the cap has been closed. Otherwise, gently open the cap of the sampling tube and inject the preservation fluid evenly.

⑤. Turn the DNA saliva collector up and down, shake it fully, and confirm that the sampling is completed after the liquid reaches the 4ml scale.

Cautions：

①、dna is extracted not by saliva itself, but by the exfoliated cells contained in saliva. Therefore, when collecting saliva samples, please try to scrape the upper and lower palate several times with your tongue while scraping a little bit of your tongue with your teeth to ensure the number of exfoliated cells.

②, 30 minutes before sampling, it is recommended not to affect the success rate of sampling such as diet, drinking water and smoking. The first thing in the morning when you get up is to sample to ensure the sampling success rate.

③. Be careful not to rinse your mouth with mouthwash before sampling