The prior collection standard of the industry was the dry preservation method, which worked without the fluid, but in humid climates, was prone to bacteria growth on the scraper tip. As our company enjoys an international clientele, we have chosen to use a universal collection kit.
You will notice the cotton 'toothed' tip at the end of the scraper. The sensation of using our scraper is like brushing your inside cheek with your toothbrush. Remember, a good scrape produces lots of DNA, which makes the extraction process easier and decreases the chance that one or more of your markers will fail to be readable on the first test of your sample.