All of our Products are fully TPD Compliant and have full traceability throughout the production process; this includes mixing our own nicotine, this allows us to be able to control the final product from start to finish, with our own in house as well as 3^rd party testing guarantees quality and consistency not only in our nicotine shots but all TPD Compliant products, so you can rest assured that you are receiving a high quality liquid from a reputable company.