You are probably wondering what e-liquid is all about! Why is it used? What does it contain? Is it safe to use? Are there any side effects? And many other such questions which cross your mind. These are possibly some of a few questions, which may come to one’s mind during the course of being introduced to vaping the use of e-liquids. This article is aimed to outline any such queries and concerns regarding the use of e-liquids. These questions will help clarify any justification before you decide to start using an electronic cigarette device.

What is E-Liquid?

E-cigarettes and personal vaporizers use a special flavoured liquid known as e-liquid or e-juice. E-liquids generally are a pre-mixed solution which may or may not contain nicotine; you can choose a particular variant of nicotine strength depending on your personal preference.
The pretext ‘E’ in E-liquids denotes that these liquids are to be used with an electronic smoking device (vaporizer), which heats up the e-liquid to produce vapour which the user then vapes.

Why is it used?

What is the purpose of e-liquid in the vaping process? Simply put e-liquid or e-juice is the consumable used to produce the visible vapour. The vapour produced from e-liquid is created by the means of a battery which heats up a connected atomizer. The vapour produced is then inhaled simulating the sensation of smoking. E-liquid is the main component through which nicotine and different flavours are delivered to the user via the vapour produced with the use of an electronic cigarette which is why they are now featured as an alternative nicotine delivery system.

What is the main composition of e-liquid?

There are three main components of e-liquids.

1. PG (Propylene Glycol ) or VG (Vegetable Glycerin)

2. Flavouring

3. Diluted Nicotine

One of the features with e-liquids is that they offer a variety of e-liquids available in different nicotine strengths (variants). A user looking to reduce their nicotine intake, can look to purchase from a range of varying e-liquids containing nicotine with strengths from 24mg/ml (2.4%) down to 0mg/ml (0%).

Expanding further on the main compositions described we have:


Flavours and nicotine are dissolved in hygroscopic (absorbs water from the air) components, which turn the water in the solution into a smoke-like vapor when heated. Commonly used hygroscopic components include Propylene Glycol (PG,), Vegetable Glycerin (VG), and Polyethylene Glycol 400 (PEG 400). All these three components are non-toxic food additives and are most commonly used in pharmaceutical procedures.

Diluents have the ability to hold water, the common known diluents used in e-liquid are PG or VG. These will form the main solution of e-liquid and is also used as a carrier for all the other components used. For a pleasurable vaping experience the two compnents added are Nicotine and flavorings, these being originally highly concentrated are diluted down to blend the perfect e-liquids for your use.

There are subtle difference between PG and VG these being the taste, viscosity, and also the throat hit when vaped. Generally you will find that e-liquids have a mixture of both PG & VG and are presented in a common ratio of PG to VG. Common ratios are 80/30, 70/30, 60/50, 50/50, or 30/70 (some ratios may be quoted as VG to PG). VG Max is a preferred term rather than 100% VG as flavour concentrates are generally diluted with PG . Both PG and VG are suitable for vaping, in the teething process of trialling e-liquids specific to the device you are using you’ll probably be looking to experiment with various PG/VG ratio's to find the one(s) you enjoy.

  • PG is an organic chemical compound that is widely used in food, tobacco, and personal care products. It is also used in topical, oral, injectable, and inhaled pharmaceutical products. PG doesn’t alter the true flavour of the flavour concentrates as much as VG can. Also, PG is usually preferred by users of the ‘regular’ e-cig devices because it delivers a stronger throat hit. This can possibly result in slight irritation after extended use. It is rare, but some people have or can develop an allergy to PG.
  • VG is slightly sweeter and slightly more viscous (thicker) than PG. Higher VG ratio e-liquids may take slightly longer to soak into a cotton wick, for example. VG can slightly alter the way a flavour tastes, but that can be good or bad depending on your individual taste. High VG is usually preferred by users of the higher powered ’sub-ohm’ devices because it has a smoother throat feel and generates huge more visible clouds of vapour.


Flavours are available in a wide variety for both regular and sub-ohm use. Our flavours offer a taste experience you won’t find anywhere else, because e-liquid flavours have been specifically designed for inhalation rather than the food flavoring used throughout the industry. They are tested rigorously for diacetyl and acetyl propionyl, to provide the safest vape possible.

We are always looking to add more flavour ranges for you to enjoy, if we don’t currently have a flavour you are looking for your welcome to send us an email with your suggestion.

Flavours, form almost 10%-20% of solution, are highly valued by vapers in comparison with ordinary cigarettes. Ordinary cigarettes are commonly only available in tobacco or some minty flavours whereas e-cigarettes can have a range of exciting flavours such as peach, apple, watermelon, peach, cotton candy, grapes, strawberry, chocolate etc.


Nicotine has a flavour of its own, so your choice of e-liquid may taste different at higher strengths of nicotine than lower. Nicotine used in VapeHit e-liquids is not only well tested and carefully handled, but we also take great care to make sure that our nicotine adds as little odor, taste, and colour as possible.

Nicotine is a dangerous substance ‘at high concentrations’ both through inhalation and skin contact, please make ensure you are using all precautionary measures when handling and storing diluted nicotine: Liquid nicotine is commonly added to the e-liquid solution, the amount of nicotine used for making e-liquid depends upon the solution produced. Nicotine’s quantity range s in different strengths from between 0% and 2.4% allowing you to choose the most suitable according to your personal preference. One of the advantages of nicotine in e-liquids is that if a person is looking to quit smoking, they can initially switch to vaping and then reduce the amount of nicotine in their e-liquid gradually, ultimately eliminating it from e-liquid if that is the goal!

Relation between nicotine & strength of solution

The greater the amount of nicotine used, the stronger in strength will be the solution formed and vice versa. Regular users who seek a decent throat hit such as with High PG e-liquid prefer higher nicotine variants.

When an e-liquid solution contains 3-6 mg nicotine/ml of solution, it is termed as low strength solution with a comparable effect as that of ultra-light cigarettes.

An e-liquid solution containing 6-12 mg nicotine/ml of solution, it is light strength solution with a comparable effect as that of light cigarettes.

An e-liquid solution containing 12-18 mg nicotine/ml of solution, it is medium strength solution a with a comparable effect as that of regular cigarettes.

Whereas, solution containing 18-24 mg and above nicotine/ml of solution, is high strength solution with a comparable effect as that of strong tobacco.

If you're using a Sub-Ohm device as opposed to a  regular model (EGO-style), then we suggest reducing the amount of nicotine as these devices output a much greater amount of vapour - and therefore provide more nicotine per-puff. As a general rule, cut the amount of nicotine in half (e.g. if you're used to 12mg/ml, try 6mg/ml instead). E-liquid (High VG) is generally available in a range between 0mg/ml to 6mg/ml.

These statistics are represented in form of table given below;

 Table Showing Ratio of Nicotine Vs Strength of Solution


Name of solution

% of Nicotine in solution

Components of solution


No Nicotine Solution


PV, VG, Flavouring


Ultra Low Nicotine Solution


PV, VG, Flavouring, 3mg-6mg nicotine per ml


Low Nicotine Solution


PV, VG, Flavouring, 6mg-12mg nicotine per ml


Regular Nicotine Solution


PV, VG, Flavouring, 12mg-18mg nicotine per ml


Strong Nicotine Solution


PV, VG, Flavouring,18mg-36mg nicotine per ml


You can also view in the table below which provides an approximate guide based on how many cigarettes per day you used to smoke, although you'll likely find yourself reducing the strength gradually as you get used to being smoke-free:

Cigarettes Per Day

E-Liquid Nicotine (mg/ml)









Health implication of e-liquids in correspondence with medical studies

Since e-cigarettes have not been widely used long enough for evaluation, the long-term health effects from the second-hand vapor are not known. There is insufficient data to determine the impact on public health from e-cigarettes. Most of information and statistics obtained from vapers is undergoing medical research so nothing can be said for sure.
However a positive point which can’t be neglected here is that the results from most of the reports regarding e-cigarette smoking are looking very positive. For instance, a 2014 review, carried out under the title of “ Peering through the mist: systematic review of what the chemistry of contaminants in electronic cigarettes tells us about health risks ” indicated that the levels of inhaled contaminants from the e-cigarette vapor are not of significant health concern for human exposures by the standards used in workplaces to ensure safety. In 2015, a report commissioned by Public Health England concluded that e-cigarettes "release negligible levels of nicotine into ambient air with no identified health risks to bystanders."

A lot of rumors have spread relating to the presumably harmful and dangerous effects of using e-liquids but these are mainly rumors with misguided or inconclusive information which are not as yet proven.

Safety and health concerns while using e-liquids

There have been companies producing e-liquids found to consist of harmful products such as diacetyl, formaldehyde and many others.

VapeHit believes in providing only the highest quality e-liquid free from these known toxins for our customers, so you can rest assured to be only using high quality e-liquid when purchased from us. We strive in searching to provide only the best products for our customers. We welcome the proposed government standards and regulations set forth with the Tobacco Product Directive (TPD). We are continuing to transition over to meet and comply with all the requirements of the TPD so that any e-liquids supplied by VapeHit fully conform to the health and safety guidelines in order to ensure the provision of only high quality safe products for our customers.

Nicotine in its pure form, when taken in high enough doses can kill as it is classed as a poison. However, nicotine contained within e-liquid is heavily diluted so it does not pose the same threat and can be safely used with a vaporizing device. At high concentrations through both inhalation and skin contact nicotine can cause side effects with some users so precautions are advised with the usage of nicotine containing e-liquid.

Similarly, PG delivers a stronger throat hit, which can result in slight irritation after extended use. It is rare, but some people have or develop an allergy to PG. Here some users may possibly decide to switch to a higher VG ratio to counter the effect of PG.

Categorisation of e-liquids

Here at VapeHit we have simplified e-liquid categories of PG/VG as follows:

  • High PG : these contain a high PG content and low VG content. It is ideal for regular usage with great full flavours and provides a good throat hit. Commonly 70/30 PG to VG

· High VG: these contain a high VG content and low PG content. It is ideal for sub-ohm usage with amazing, remarkable flavours providing an enjoyable lung hit.

  • 50/50 PG/VG: as the name suggests, this model can be used for either of the above two subject to personal preference, but commonly tends to be used with regular devices.

Categorising the usage of e-liquid according to the particular device type used is as follows:

· Regular users: These are users who use the common popular e-cigs devices such as those in the EGO range, providing low power output. These provide great flavour with an enjoyable throat hit with users performing a ‘mouth to lung’ process; here the vapour is inhaled into the mouth first, then further fully inhaled into the lungs providing a great throat hit. These users tend to use High PG e-liquids.

· Sub-Ohm users: These are ideally for advanced users who use devices (i.e. box mods) which can achieve higher wattages producing huge clouds of vapour. The process performed with these devices is a ‘direct lung hit’; here the user inhales the vapour directly into the lungs. With the ever-increasing range of amazing flavours available sub-ohming is becoming an increasingly pleasurable and social experience; these users will tend to use High VG or VG Max e- liquids.

Quality Assurance

Since VapeHit initially began as vendors for e-liquid and vaping products, our aim always has been to provide our customers with only the best and high quality flavoured e-liquids. Our highly popular E-Liquid brand ‘VapeHit Premium Quality E-liquid’ is produced by Hangsen in China who are the leading global producers of e-liquid.

Now the high quality production of e-liquid has sprung within the UK and together with the imposed TPD regulations e-liquid production is transitioning to all new level of quality. VapeHit is gladly transitioning over to a new product range for you. Already available for you are e-liquid variants which are TPD compliant with newer models to also be gradually released in due course. This is in order to maintain and ensure a marked provision of high quality liquids for our customers.