PG (propylene glycol) and VG (vegetable glycerin) are diluants used in e-liquid. VG is more viscous (thicker), slightly sweet and produces larger vapor clouds. PG carries flavor better.
Most first time users tend to lean towards higher PG content, but the more experience you gain with vaping, you might want to try higher VG content, especially when using box mods.
Note: we do not recommend using VG content of higher than 50% with plastic clearomizers as they may cause cracking.
This e-liquid in this product is 80% vegetable glycerin (VG) and 20% propylene glycol