What Are Nic Shots? Your Complete How-To Guide
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Staring at a bottle of premium shortfill e-liquid and a separate nicotine vial, feeling a wave of uncertainty? You're not alone. The fear of ruining a favourite flavour, the confusing maths, and the jargon like 'nic salt' or 'VG/PG' can make anyone hesitate before mixing. This process seems complex, but it's the key to unlocking the fantastic value and flavour variety of larger, more economical shortfill bottles.
This guide is here to eliminate the guesswork. We'll show you exactly what nic shots are and provide a simple, step-by-step process for using them safely and effectively. You will learn how to calculate the perfect strength for your needs and understand the crucial differences between freebase and nic salt shots. By the end of this guide, you'll be able to choose the right product for your vape kit and mix your e-liquid with total confidence, every single time.
What is a Nic Shot and Why Do You Need One?
A nic shot is, in simple terms, a 10ml bottle of unflavoured e-liquid that contains a concentrated amount of nicotine. Its sole purpose is to be added to larger, nicotine-free (0mg) bottles of vape juice, commonly known as shortfills. If you prefer to buy your e-liquid in larger, more economical bottles, you will need a nic shot to add the nicotine yourself.
This system offers two key benefits for vapers:
- Cost-Effectiveness: Buying larger shortfill bottles and adding your own nicotine is often cheaper than buying the equivalent volume in 10ml bottles.
- Nicotine Control: It gives you precise control over the final nicotine strength of your e-liquid, allowing you to tailor your vape to your exact preference.
But why do these products even exist? The answer lies in UK vaping regulations.
The TPD Law Explained Simply
The entire concept of shortfills and nic shots was born from a specific piece of legislation. In 2017, the UK government implemented the Tobacco Products Directive (TPD), which introduced a set of rules for the sale and manufacture of vaping products. The most significant rule for e-liquid consumers was a new restriction: it became illegal to sell any e-liquid containing nicotine in a bottle larger than 10ml. This created a problem for vapers who were used to buying larger, better-value 50ml or 100ml bottles.
How Nic Shots & Shortfills Solve the Problem
The vaping industry responded with a clever and completely legal solution. A shortfill is a large bottle of nicotine-free (0mg) flavoured e-liquid that is intentionally underfilled. For example, a 60ml bottle will contain 50ml of vape juice, leaving exactly 10ml of empty space. This space is designed for you to pour in a 10ml nic shot. By combining the 50ml of 0mg e-liquid with one 18mg nic shot, you create 60ml of 3mg e-liquid. This simple yet effective system allows you to legally purchase and mix larger quantities of your favourite e-liquid flavours.
How to Use Nic Shots: A 5-Step Guide
Adding a nic shot to your shortfill e-liquid is a straightforward process that takes less than five minutes. It's designed to be quick, easy, and completely safe when done correctly. For a clean and hassle-free experience, we recommend working on a stable, flat surface with a paper towel handy for any potential drips. Always wash your hands thoroughly before and after handling e-liquids.
What You'll Need
Before you begin, gather your supplies. Having everything ready makes the process seamless. You will need:
- Your nicotine-free shortfill e-liquid (e.g., a 50ml or 100ml bottle).
- Your 10ml nicotine shot(s).
- A cloth or paper towel to protect your work surface.
- Gloves (optional, but recommended). Nicotine can be absorbed through the skin, so it's vital to understand the dangers of liquid nicotine exposure and handle it with care.
The Mixing Process (Step-by-Step)
Follow these five simple steps to create your perfect nicotine-strength vape juice. This is the core method for using nic shots with any shortfill bottle.
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Step 1: Get Ready
Unscrew the caps from both your shortfill e-liquid and your nic shot bottle. Place them aside on your paper towel. -
Step 2: Open the Shortfill
Carefully remove the nib or nozzle from the top of the larger shortfill bottle. Most pop off with a bit of upward pressure, but a small tool can help if it's tight. -
Step 3: Add the Nicotine
Gently squeeze the entire 10ml contents of your nic shot directly into the open shortfill bottle. -
Step 4: Seal the Bottle
Firmly press the shortfill nozzle back into place until it clicks, ensuring a secure seal. Screw the main cap back on tightly to prevent any leaks. -
Step 5: Shake Vigorously
This is the most important step. Shake the combined liquid vigorously for at least 60 seconds. This ensures the nicotine is evenly distributed throughout the e-liquid.
Pro Tip: The Importance of Shaking and Steeping
Properly shaking the bottle is crucial for a consistent and satisfying vape. An uneven mix can result in harsh-tasting puffs or an inconsistent nicotine hit. Once shaken, your e-liquid is ready to vape immediately. However, for the best possible flavour, many vapers prefer to 'steep' the liquid. Steeping simply means letting the mixed e-liquid rest for a period, which allows the flavour concentrates to fully mature and blend with the newly added nicotine. Letting it sit in a cool, dark place for a few hours can make a noticeable difference to the flavour depth.
The Nic Shot Calculator: Getting Your Strength Right
Worried about getting your nicotine strength wrong? It's the most common concern for vapers new to shortfills. The good news is that the maths is incredibly simple. Almost all 10ml nic shots sold in the UK come in a standard 18mg/ml (1.8%) strength, which makes calculating your final mix straightforward. While the process is easy, it's always crucial to handle nicotine concentrate with care; for detailed safety information, you can review the CDC Nicotine Safety Guidelines. This guide will give you the exact formulas you need.
Mixing with 50ml Shortfills (in a 60ml bottle)
This is the most popular combination for sub-ohm vapers. A 50ml shortfill comes in a 60ml bottle, leaving just enough space for one 10ml nicotine shot.
- The Formula: Add 1 x 10ml (18mg) nic shot to 50ml of nicotine-free e-liquid.
- The Result: You get 60ml of e-liquid with a 3mg/ml nicotine strength.
Once you've added the shot, the bottle is full, so achieving a higher strength isn't possible without decanting the liquid into a larger bottle.
Mixing with 100ml Shortfills (in a 120ml bottle)
Larger 100ml shortfills offer more flexibility and better value. These bottles have 20ml of empty space, allowing you to add up to two nic shots.
- For a 1.5mg Strength: Add 1 x 10ml (18mg) nic shot to 100ml of e-liquid. This gives you 110ml of e-liquid at approximately 1.5mg strength.
- For a 3mg Strength: Add 2 x 10ml (18mg) nic shots to 100ml of e-liquid. This fills the 120ml bottle and results in a final nicotine strength of 3mg.
To get a 6mg strength, you would need to pour out some of the shortfill and add four shots, or mix everything in a separate, larger mixing bottle.
Quick Reference Mixing Table
For a quick and easy guide, use our mixing table below. This shows the most common combinations to achieve a final strength of 3mg, the UK's most popular choice for shortfill users.
| Shortfill E-Liquid Size | Number of 18mg Nic Shots to Add | Final Volume & Strength |
|---|---|---|
| 50ml (in a 60ml bottle) | 1 Shot | 60ml of 3mg |
| 100ml (in a 120ml bottle) | 2 Shots | 120ml of 3mg |
| 200ml (requires separate mixing bottle) | 4 Shots | 240ml of 3mg |
Now that you know how to mix, you just need the perfect flavour. Browse our range of premium shortfills here.

Choosing the Right Type of Nic Shot
Once you understand how to mix them, the next step is selecting the right product. Not all nic shots are created equal, and your choice directly impacts the final vaping experience. The best option for you depends on your vape kit, your preferred e-liquid, and the kind of throat hit you enjoy. To make the right decision, you need to consider three key variables: the nicotine type, the VG/PG ratio, and any added flavour.
Freebase Nicotine vs. Nic Salt Shots
The most significant choice you'll make is the type of nicotine. Each offers a distinct sensation, and one will be better suited to your vaping style than the other.
- Freebase Nicotine: This is the traditional form of nicotine used in e-liquids for years. It provides a noticeable and satisfying 'throat hit' that many ex-smokers look for. Freebase shots are ideal for higher-wattage, sub-ohm (DTL) devices where you want a more powerful sensation.
- Nic Salt (Nicotine Salt): A more modern formulation, nic salt is much smoother on the throat, even at higher strengths. It's absorbed into the bloodstream faster, delivering a quicker nicotine satisfaction. Nic salt shots are perfect for low-wattage pod kits and MTL (mouth-to-lung) vaping.
Understanding VG/PG Ratios
The VG/PG ratio of your nic shot determines its thickness and performance. VG (Vegetable Glycerin) is a thick, sweet liquid responsible for producing dense vapour clouds. PG (Propylene Glycol) is a thinner liquid that carries flavour more effectively and contributes to the throat hit.
As a golden rule, you should always match the VG/PG ratio of your nic shot to the ratio of your shortfill e-liquid. For example, if you have a 100ml shortfill with a 70/30 VG/PG ratio, you should use a 70/30 VG/PG nic shot. This ensures the final e-liquid has a consistent viscosity, which is crucial for proper wicking and preventing coil issues.
Ice / Menthol Nic Shots
Looking to customise your vape? Ice and menthol nic shots offer a simple way to add a cooling kick to any shortfill e-liquid. Instead of being flavourless, these shots contain a concentrated cooling agent or menthol flavour.
This is a fantastic way to create a custom 'ice' version of your favourite fruit or dessert flavour without having to buy a brand new bottle. Simply add an ice shot instead of a standard one to instantly transform your juice with a refreshing, chilly finish.
With these key differences in mind, you can easily tailor your shortfill e-liquid to perfectly match your preferences. Find the perfect Nic Salt, Freebase, or Ice Shot for you.
Common Mistakes & Safety FAQs
Using shortfills and nic shots is a straightforward way to create your perfect e-liquid. However, a few common mistakes can impact your experience. By avoiding these simple pitfalls and prioritising safety, you can ensure a satisfying vape every single time. This guide is here to help you get it right from the start.
Mistake #1: Adding the Wrong VG/PG Ratio
One of the most frequent errors is mismatching the VG/PG ratio. For example, adding a 50/50 VG/PG nic shot to a 70/30 VG/PG shortfill will thin the final e-liquid. This lower viscosity can cause significant problems for sub-ohm vapers, often leading to gurgling sounds and leaking coils. The simple fix? Always match the ratio of your nic shot to your shortfill for consistent performance and a leak-free experience.
Mistake #2: Not Shaking Enough
After adding your nic shot, it's crucial to mix the bottle thoroughly. If you don't shake it enough, the nicotine won't be evenly distributed. This results in an inconsistent vape with an unpleasant taste and harsh 'hot spots' of concentrated nicotine. For a perfect blend, shake the bottle vigorously for at least 60 seconds, or until all the thicker bubbles from the nicotine shot have completely disappeared. This guarantees a smooth and flavourful vape from the first puff to the last.
Safety First: Handling Nicotine
Your safety is paramount when handling any nicotine-containing product. Nicotine is an addictive substance and should be handled with care. Always follow these essential safety rules:
- Never vape a nic shot on its own. It is a highly concentrated, unflavoured additive designed only for dilution in a nicotine-free shortfill e-liquid.
- Wash your hands immediately. If you spill any nicotine-containing liquid on your skin, wash the area thoroughly with soap and water.
- Store securely. Always keep e-liquids and nic shots well out of the reach of children and pets, preferably in a locked cupboard.
By following these simple guidelines, you can mix with total confidence. For all your vaping needs, you can explore our extensive collection of premium e-liquids and mixing supplies right here at Vape Center, your ultimate destination for vaping in the UK.
Ready to Create Your Perfect E-Liquid?
You're now equipped with all the knowledge needed to master your mix. We’ve demystified what these essential additives are, walked you through a simple 5-step mixing process, and shown you how to use a nicotine calculator for perfect, consistent strength every time. You can now confidently choose the right type of nic shots-whether it's smooth nic salt, classic freebase, or a cool ice shot-to perfectly tailor your vaping experience.
As a leading provider in the UK, Vape Center is your ultimate destination for all your mixing needs. We stock an extensive collection of premium freebase, nic salt, and ice shots from all the top brands. With our competitive prices and fast, reliable UK delivery, creating your ideal e-liquid has never been easier or more affordable. Explore our selection and find exactly what you need to get started.
Shop our full range of Nic Shots from just 99p! Happy mixing!
Frequently Asked Questions About Nic Shots
Can I vape a nic shot by itself?
No, you should never vape a nic shot on its own. They contain a very high concentration of nicotine in an unflavoured base liquid. Vaping them directly would be extremely harsh and unpleasant, delivering a dangerously high dose of nicotine. They are designed exclusively as an additive to be mixed with larger bottles of nicotine-free shortfill e-liquids to create a lower, vapable nicotine strength. Always mix them before use.
Do nic shots have a flavour?
Standard nic shots are completely flavourless. They are made from a simple mix of nicotine, Propylene Glycol (PG), and Vegetable Glycerin (VG). This is intentional, as it ensures they won't alter the carefully crafted flavour profile of your premium shortfill e-liquid. Their only purpose is to add nicotine. However, you can find specialised 'ice' or 'menthol' nic shots that will add a cooling sensation to your e-liquid along with the nicotine.
How long do nic shots last once opened?
Once opened, a nic shot is best used immediately by adding it to your shortfill. If you need to store it, ensure the cap is tightly sealed and keep it in a cool, dark place away from sunlight. While it won't "spoil" quickly, the nicotine will begin to oxidise over time. This can cause the liquid to darken in colour and may slightly alter the final taste of your e-liquid. For the best results, use it within a few days.
Can I add a nic shot to a 10ml bottle of e-liquid?
No, you should not add a nic shot to a 10ml e-liquid. Under UK regulations, 10ml bottles are already filled to capacity with e-liquid that contains nicotine. There is no space to add anything else, and doing so would create a liquid with a nicotine strength far above the legal 20mg/ml limit. Shortfills are specifically designed with extra space in the bottle to accommodate a nic shot, whereas 10ml bottles are not.
Is it possible to make a 6mg strength e-liquid from a 50ml shortfill?
To create a 6mg strength e-liquid, you would need to add two 18mg nic shots to 50ml of nicotine-free e-liquid. However, a standard 60ml bottle containing 50ml of e-liquid only has 10ml of space, which is enough for just one nic shot to make a 3mg liquid. To achieve 6mg, you would need to decant the e-liquid and both nic shots into a larger, separate mixing bottle that can hold at least 70ml of liquid.
What happens if I add a nic salt shot to a shortfill?
Adding a nic salt shot to a shortfill works in exactly the same way as a standard freebase one-it adds nicotine to your e-liquid. The key difference is the experience. Nicotine salts provide a much smoother throat hit, even at higher strengths, and are absorbed more quickly for faster satisfaction. This makes your shortfill e-liquid feel more like a disposable vape and is an excellent choice for vapers using pod kits or MTL setups.