DYI stands for" Do It Yourself" allowing you to make your own high quality e-liquids with Ooh La La Premium E-liquiids. We have an amazing collection of Professional Flavorings. Our Nicotine is Pharmaceutical Grade. PG and VG are 100% Food Grade. We carry the supplies you need to create high-quality, delicious e-liquids safely in your home laboratory! Happy Vaping!