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VG and PG in vape - Effects and Implications

October 22, 2023

VG and PG in vape are two liquids that are combined in various ratios to create the base of vape juices, allowing for customization of the vaping experience. The choice between VG and PG, as well as the ratio used, can significantly influence aspects such as vapor production, flavor intensity, throat hit, and overall vaping satisfaction.

What Are PG and VG?


PG (Propylene Glycol)


Propylene Glycol, commonly abbreviated as PG, is a synthetic organic compound. It's a colorless, nearly odorless, and tasteless liquid that possesses hygroscopic and low volatility properties. In the vaping industry, PG is valued for its ability to carry flavors effectively. This means that e-liquids with a higher PG ratio often deliver a sharper and more pronounced flavor profile. Moreover, PG provides a "throat hit" that many smokers and vapers appreciate, giving a sensation similar to traditional tobacco smoking. Beyond vaping, PG is used in various applications, including pharmaceuticals, food, and cosmetic products, due to its solvent properties and ability to preserve moisture.


VG (Vegetable Glycerin)


Vegetable Glycerin, often referred to as VG, is a natural compound derived from vegetable oils, typically palm or coconut oil. It's a clear, viscous liquid that's slightly sweet to the taste. VG is primarily used in the vaping world to produce vapor. E-liquids with a higher VG content tend to produce thicker and more voluminous clouds of vapor, which is preferred by those who enjoy "cloud chasing" or just like a fuller vapor experience. VG also imparts a smoother sensation on the throat compared to PG, making high VG e-liquids a popular choice for those who find high PG blends too harsh. Additionally, VG is found in a range of products outside of vaping, including foods as a sweetener, in cosmetics for its moisturizing properties, and in various medical preparations.


Are VG and PG Safe?


Both Propylene Glycol (PG) and Vegetable Glycerin (VG) boast extensive histories of safe utilization across a spectrum of consumer products. These include, but are not limited to, their roles in the realms of food production, pharmaceutical formulations, and cosmetic applications.


Their established safety profiles have earned them recognition as generally recognized as safe (GRAS) substances by regulatory agencies. It's crucial to underscore that the vast majority of individuals experience no adverse effects when using PG and VG in e-liquids.


These compounds are known for their biocompatibility and low toxicity. But, some individuals may exhibit sensitivity to PG. These sensitivities might present as throat irritation, dryness, or a sensation commonly referred to as "vaper's tongue," where the ability to taste flavors diminishes temporarily.


As with any consumer product, individual responses can vary, and it's advisable for those who suspect PG sensitivity to consult with a healthcare professional or explore VG-dominant e-liquids to ensure an enjoyable and comfortable vaping experience.


What Does the PG/VG Ratio in E-liquid Mean?


The PG/VG ratio indicates the proportion of PG to VG in a vape juice. This ratio influences several aspects of the vaping experience, including throat hit, flavor intensity, vapor production, and smoothness. In essence, the PG/VG ratio serves as a versatile tool for vapers to fine-tune their vaping journey.


By selecting the appropriate ratio, you can tailor your experience to align with your preferences, whether you prioritize throat hit, flavor intensity, vapor production, or smoothness. The beauty of vaping lies in its customizability, allowing you to discover the perfect PG/VG balance that suits you.


What VG/PG Ratio Should I Use?

The PG/VG ratio in vape juice is a critical factor that profoundly shapes the overall vaping experience. This ratio signifies the proportion of two primary base liquids, Propylene Glycol (PG) and Vegetable Glycerin (VG), used to formulate the e-liquid. Each element of this ratio plays a distinct role in how the vapor behaves and feels, impacting various aspects of the vaping encounter:


Throat Hit


A vape juice with a higher PG content often delivers a stronger throat hit, which simulates the sensation of smoking traditional tobacco products. This is particularly appealing to individuals transitioning from smoking to vaping, as it mimics the familiar "kick" in the throat.


In contrast, e-liquids with a higher VG ratio typically produce a milder and smoother throat hit. This is preferable for vapers who find a harsh throat sensation unpleasant.




E-liquids with elevated VG ratios contribute to a noticeably smoother and creamier vaping experience. The reduced throat hit associated with VG often results in a velvety sensation that many vapers find enjoyable for extended periods of vaping.

On the flip side, e-liquids with higher PG content may occasionally be perceived as slightly harsher. Some vapers appreciate this slight edge, while others may find it less.For those who prefer a smooth and consistent experience, products like the RELX Pod offer a well-balanced VG/PG ratio, ensuring both flavor richness and a gentle throat feel.


Stealth Vaping


If discretion is a priority and you prefer vaping with minimal vapor production, a higher PG ratio is the better choice. PG-dominant e-liquids produce less conspicuous vapor clouds, allowing you to vape discreetly in public settings.


Vape juices with a higher VG content tend to generate denser clouds. While perfect for cloud enthusiasts, this may not be ideal for stealthy vaping situations where you'd rather keep a low profile.


Cloud Chasing


For those who relish the art of cloud chasing and aim to produce thick, voluminous clouds, a higher VG ratio is the go-to option. VG's propensity for creating substantial vapor clouds makes it a favorite among cloud chasers.


Conversely, e-liquids with higher PG ratios are less conducive to cloud chasing due to their lower vapor production.


Does Vape Juice Expire?


Vape juice, like many consumable products, is subject to expiration over time. The shelf life of e-liquids hinges on several factors, with the primary ones being the ingredients contained within and the storage conditions they're exposed to. The constituents of vape juice, such as nicotine, flavorings, PG and VG, can undergo chemical changes over extended periods.


These changes may manifest as alterations in flavor, color, and overall quality. It's crucial to note that the expiration of vape juice doesn't necessarily render it harmful, but rather, it can lead to a less enjoyable vaping experience. The rate at which e-liquids expire is closely tied to how they are stored.


Exposure to heat, light, and oxygen can expedite the degradation of nicotine and flavor compounds, potentially shortening the shelf life. To maximize the longevity of your vape juice, it's advisable to store it in a cool, dark place, away from direct sunlight and excessive heat. Sealing the bottle tightly to minimize exposure to oxygen can help preserve the e-liquid.


Ultimately, while vape juice does have a shelf life, proper storage practices can significantly extend its usability. Regularly checking the expiration date on the packaging and heeding recommended storage guidelines ensures that your vaping experience remains as enjoyable and satisfying as intended.




Knowing the distinct roles played by VG and PG in vape is not just informative; it's pivotal for crafting a vaping experience that aligns with your preferences. The PG/VG ratio you select serves as a potent tool, allowing you to fine-tune your vaping adventure to achieve the satisfaction you desire.


Frequently Asked Questions About “vg and pg in vape”


What Is the Difference between PG and VG?


PG and VG differ in viscosity, throat hit, vapor production, and flavor intensity. PG offers a stronger throat hit and flavor but produces less vapor, while VG provides smoother inhales and denser clouds.


What Is the Optimal PG VG Ratio for E-cigarettes?


The optimal PG/VG ratio varies depending on your vaping preferences. There's no one-size-fits-all answer; it's a matter of personal taste. Experimenting with different ratios can help you find your ideal balance.


Is the Higher the PG, the Better the VG?


Not necessarily. The choice between higher PG or VG depends on your vaping goals. Higher PG may be better for throat hit and flavor, while higher VG is preferred for smoothness and cloud production. It's about finding the right balance for your preferences.

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