Propylene glycol (PG) and vegetable glycerin (VG) are two common base ingredients found in e-liquids, each with its own unique properties and effects on vaping experience. Understanding the differences between PG and VG can help vapers choose e-liquids that best suit their preferences and needs. Here’s a comparison of PG and VG in e-liquid:

Propylene Glycol (PG)

  • Thinner Consistency: PG has a thinner consistency compared to VG, which makes it easier to handle and less likely to clog vaping devices.
  • Strong Throat Hit: PG produces a stronger throat hit, similar to the sensation of smoking, making it popular among users transitioning from cigarettes.
  • Enhances Flavor Intensity: PG carries flavorings more effectively than VG, resulting in more pronounced flavor intensity and clarity.
  • Less Vapor Production: PG-based e-liquids typically produce less vapor compared to VG-based e-liquids, making them suitable for discreet vaping.
  • Potential Sensitivity: Some users may experience irritation or allergic reactions to PG, such as throat irritation, dry mouth, or skin sensitivity.

Vegetable Glycerin (VG)

  • Thicker Consistency: VG has a thicker viscosity compared to PG, which contributes to its smooth and dense vapor production.
  • Milder Throat Hit: VG provides a milder throat hit compared to PG, resulting in a smoother vaping experience that may be preferable for some users.
  • Slightly Sweet Taste: VG has a slightly sweet taste, which can influence the overall flavor profile of e-liquids, particularly when used in high concentrations.
  • Produces Dense Vapor Clouds: VG-based e-liquids produce thicker, more voluminous vapor clouds, making them popular among cloud-chasing enthusiasts.
  • Potential Coil Build-Up: VG is thicker and more prone to residue buildup on vaping coils, which may require more frequent cleaning or coil replacements.

Choosing the Right Ratio

Many e-liquids contain a combination of PG and VG in varying ratios to balance their respective characteristics and provide an optimal vaping experience. Common PG/VG ratios include 50/50, 70/30, and 30/70, among others. The choice of ratio depends on individual preferences for throat hit, vapor production, and flavor intensity.

  • 50/50: A balanced ratio that offers a moderate throat hit, vapor production, and flavor intensity, suitable for most vapers, especially beginners.
  • 70/30 (VG/PG): A higher VG ratio that prioritizes vapor production and smoothness, ideal for cloud-chasing enthusiasts and users who prefer less throat hit.
  • 30/70 (VG/PG): A higher PG ratio that emphasizes flavor intensity and throat hit, suitable for users who prioritize strong flavor and sensation.


PG and VG are both essential components of e-liquids, each contributing to the overall vaping experience in different ways. By understanding the differences between PG and VG and their effects on throat hit, vapor production, and flavor intensity, vapers can make informed choices about the e-liquids they use and tailor their vaping experience to their preferences.