Strongest Vape Juice 2025 (UK): Your Guide to High-Nic Satisfaction

As vaping continues to evolve across the UK, one thing’s clear — some users are chasing a stronger, more satisfying experience. Whether you’re after a fast nicotine fix or looking for something that mimics the feel of smoking, strong vape juice is still a hot topic in 2025.

Let’s break it all down. From the highest nicotine vape juice options on the market to how to choose the right strength, we’re diving into everything you need to know — without the fluff. The strongest vape juices can contain nicotine levels comparable to the average cigarette, which has around 10mg of nicotine. However, it's important to note that while an average cigarette contains this amount, the actual nicotine inhaled is significantly lower. Selecting the best nicotine strength is crucial for a satisfying vaping experience, as it can fulfil cravings and enhance the overall experience.

Introduction to Vaping

Vaping has become a popular alternative to smoking cigarettes, offering a range of benefits and options for those looking to quit or reduce their nicotine intake. With the rise of e-liquids and vape kits, it’s important to understand the basics of vaping and how to choose the right products for your needs. Nicotine salts, also known as nic salts, are a type of e-liquid that provides a smoother throat hit and is often preferred by ex-smokers. When selecting an e-liquid, consider the nicotine strength, which is typically measured in milligrams (mg) or as a percentage. The right nicotine strength is crucial for a satisfying vaping experience, and it’s essential to find a balance between flavour and nicotine delivery.

What Counts as Strong Vape Juice in the UK?

In the UK, strength is all about nicotine concentration, measured in milligrams per millilitre (mg/ml). Nicotine content impacts the strength of vape juice and the overall vaping experience. Due to TPD regulations, e-liquids are capped at 20mg/ml, which means you won’t find anything legally stronger in ready-to-use form.

But here’s the twist: It’s not just about numbers. The type of nicotine — freebase or nicotine salts — plays a big role in how strong a vape actually feels. Higher nicotine levels can lead to a stronger throat hit and potentially reduce flavour perception.

Choosing the Right E-Liquid

Choosing the right e-liquid can seem overwhelming, especially for new vapers. With so many flavours and nicotine strengths available, it’s essential to consider your personal preferences and smoking habits. Light smokers may prefer a lower nicotine strength, such as 3mg or 6mg, while heavy smokers may require a higher strength, such as 12mg or 18mg. E-liquids come in various flavours, including tobacco, menthol, and fruit flavours, so it’s essential to experiment and find the one that suits your taste buds. Nicotine salts, such as those found in bar juice, can provide a stronger throat hit and are often preferred by those who enjoy a more intense vaping experience.

Freebase vs Nic Salts: What’s the Deal?

If you’ve tried a freebase e-liquid over 12mg/ml, you’ll know it can pack a serious throat hit. Higher nicotine levels in freebase nicotine can create a strong throat hit, which is great for some, but it’s also what keeps most freebase juices below 18mg/ml.

Enter nicotine salts — the game changer. These allow for a smoother inhale at higher strengths and absorb faster into your system. Nicotine salts enable higher nicotine levels without the harsh throat hit, making them a popular choice for those seeking a smoother experience. Basically, you get the hit you want without the cough.

Vape Kit Compatibility

When choosing a vape kit, it’s essential to consider compatibility with your preferred e-liquid. Sub-ohm devices, which have a resistance below 1.0 ohms, are ideal for high-VG e-liquids and provide dense clouds and a smoother throat hit. Starter kits, on the other hand, are suitable for mouth-to-lung (MTL) vaping and are often preferred by new vapers. It’s essential to check the specifications of your vape kit and ensure that it’s compatible with your chosen e-liquid. Nic shots, which are used to add nicotine to shortfill e-liquids, can also be used to adjust the nicotine strength of your vape juice.

E-Liquid Ingredients and Safety

E-liquids are made from a combination of ingredients, including propylene glycol (PG), vegetable glycerin (VG), flavourings, and nicotine. PG provides a stronger throat hit, while VG produces dense clouds and a smoother throat hit. Nicotine, which is derived from the tobacco plant, is the primary active ingredient in e-liquids. When choosing an e-liquid, it’s essential to consider the ingredients and ensure that they meet your safety standards. Look for e-liquids that are made from high-quality ingredients and are free from harmful chemicals.

Top Picks: Strongest Vape Juices in 2025 (UK)

If you’re chasing the strongest vape juice, these 20mg/ml nic salts are leading the pack in 2025 — and they’re all TPD-compliant. These high-strength nic salts are particularly effective in managing cravings for ex-smokers:

SKE Crystal Original Salts V2 – Delivers that popular disposable-style smoothness with a satisfying kick.

Elux Legend Nic Salt – A familiar feel for those switching from disposables to refillables.

Pod Salt Nexus – Trusted for their clean blends and quick nicotine delivery.

Just Juice Bar Nic Salt – Rich in flavour and built for a smooth, strong vape with 20mg/ml of nicotine included, ensuring a balanced and satisfying vaping experience.

All of these pair brilliantly with low-powered pod systems or MTL devices, making them ideal for vapers who want high strength without harshness.

Vaping Styles

Vaping styles vary from person to person, and it’s essential to find a style that suits your needs. Sub-ohm vaping, which involves using high-VG e-liquids and sub-ohm devices, provides dense clouds and a smoother throat hit. MTL vaping, on the other hand, involves using higher nicotine strengths and is often preferred by those who enjoy a stronger throat hit. Direct-to-lung (DTL) vaping, which involves inhaling vapour directly into the lungs, provides a more intense vaping experience and is often preferred by experienced vapers. When choosing a vaping style, consider your nicotine intake, flavour preferences, and smoking habits to ensure that you find a style that suits your needs.

Is Strong Vape Juice Right for You?

High-strength liquids are best for:

• Ex-smokers who need a more intense hit
• Time-conscious vapers looking for quick satisfaction
• Users who prefer a compact, discreet vaping setup.

Individual factors like body mass and the number of cigarettes smoked daily can significantly influence the choice of nicotine strength.

If you’re new to vaping, though, it’s smart to start lower and adjust based on how you feel. Assessing past smoking habits, such as the number of cigarettes smoked, can help determine the appropriate nicotine strength for vaping. That way, you find the balance without overdoing it.

What About Anything Over 20mg/ml?

Legally? Not in the UK. But if you’re after a customised experience, shortfills give you some wiggle room. These come nicotine-free, and you can add your own nicotine shots to get the strength you want — just be sure to measure carefully. It's important to know how much nicotine can be added to shortfills to achieve the desired strength, allowing users to manage and adjust their nicotine intake more effectively.

For those looking to decrease their nicotine intake over time, gradually reducing nicotine levels is crucial. Starting with a medium nicotine strength and monitoring its decrease can help manage addiction while transitioning from smoking to vaping.

The Bottom Line

Vaping is all about finding what works for you. If a stronger hit helps you stay off cigarettes or gives you a more satisfying experience, nic salts are definitely worth a try. They’re smooth, efficient, and available in flavours you’ll actually enjoy. With a wide variety of e-liquid flavours available from numerous brands, choosing the right e-liquid flavour can significantly enhance your vaping experience.

Just remember — stick to trusted brands, use the right device, and vape responsibly. Popular flavours like passion fruit, especially in High-VG e-liquids designed for Direct-to-Lung (DTL) vaping, are highly appealing to many vapers. Strong doesn’t have to mean overwhelming.