Here's where mixing your own e-liquid gets tricky. You've got VG, PG, nicotine base, and flavoring—each with its own volume. If you're not careful, you end up with something that's either too harsh, too weak, or just doesn't taste like you expected.

The most common mistake we see? People eyeball the amounts. A few extra ml of VG can thin out flavor and mute the throat hit. Too much PG and it gets harsh and can feel dry. The math isn't hard, but it's annoying to do by hand every time you want to tweak a batch.

That's the friction. You want to experiment, but the numbers get in the way. It's a perfect use case for a simple tool that does the math for you.