What Are Nic Salts? A Plain-English Explanation

Nicotine salts — almost always shortened to nic salts — are a form of nicotine used in many of the most popular e-liquids and disposable vapes sold in the UK today. If you've bought a disposable vape like an Elf Bar, Lost Mary, Crystal Bar or Hayati, you've used nic salt nicotine — whether you realised it or not.

The technical bit: pure nicotine in its natural form is alkaline, which makes it harsh on the throat at higher strengths. In 2015, a method was developed to combine nicotine with benzoic acid, creating a more chemically stable compound — a nicotine salt. This salt form absorbs into your bloodstream faster, feels much smoother on the throat at higher strengths, and delivers a hit that mimics the satisfaction of a cigarette far more closely than traditional e-liquid.

That's why nic salts have become the dominant e-liquid type for ex-smokers and beginner vapers in the UK.

Nic Salts vs Freebase Nicotine: What's the Difference?

Before nic salts, all e-liquids used freebase nicotine — the same form you'd find in a nicotine patch or gum. Freebase nicotine works fine at low strengths (3mg, 6mg) but becomes increasingly harsh as the strength climbs. By the time you hit 18mg, freebase nicotine produces a brutal throat hit that most vapers find unbearable.

Nic salts solved that problem. Here's how they compare side-by-side:

Feature	Nic Salts	Freebase Nicotine
Throat hit at high strength	Smooth, easy on the throat	Harsh, often unpleasant
Typical strengths sold	10mg, 20mg	0mg, 3mg, 6mg
Absorption speed	Fast (similar to cigarettes)	Slower
Best device type	Pod kits, disposables, low-wattage devices	Sub-ohm tanks, high-wattage mods
Cloud production	Smaller, discreet clouds	Large, dense clouds
Best for	Ex-smokers, beginners, MTL vapers	Cloud chasers, sub-ohm vapers, experienced users

The short version: if you're switching from cigarettes and want something that satisfies cravings quickly without harshness, nic salts are the right starting point. If you've been vaping for years and enjoy big clouds and flavour at low nicotine levels, freebase is probably what you already use.

UK Nicotine Strengths Explained: 10mg vs 20mg

In the UK, the Tobacco and Related Products Regulations 2016 (TRPR) caps nicotine strength in e-liquids at 20mg/ml. That law applies to every product sold legally in the UK, including disposables. So when you see nic salt e-liquids on our shelves, you'll only ever see two strengths: 10mg and 20mg.

Which should you choose?

• 20mg Nic salt — recommended for heavy smokers (a pack a day or more), or anyone who's tried 10mg and still feels nicotine cravings between vapes. Roughly equivalent to the nicotine hit of a strong cigarette.
• 10mg Nic salt — better suited to light or social smokers, or vapers stepping down from 20mg. Still satisfies cravings but is gentler.
• 0mg / 3mg / 6mg (Freebase) — for experienced vapers who've reduced their nicotine intake over time, or who use vaping primarily for flavour and clouds.

A common mistake is choosing too low a strength when first quitting smoking. If 10mg doesn't satisfy your cravings, you'll find yourself vaping constantly to compensate — burning through more liquid and not actually reducing your nicotine intake. Most ex-smokers do better starting at 20mg and stepping down later.

Which Devices Work Best With Nic Salts?

Nic salts are designed for low-power, mouth-to-lung (MTL) vaping. Using them in the wrong device is one of the most common beginner mistakes — it leads to harsh hits, burnt coils, and excessive nicotine intake.

The right devices for nic salt e-liquids are:

• Pod kits — small, refillable devices designed specifically for nic salts. Brands like Vaporesso XROS, Uwell Caliburn and OXVA Xlim are reliable starting points. Browse our pod kits.
• Prefilled pod systems — devices like the Hayati Pro Ultra use replaceable pods pre-filled with nic salt e-liquid. Easiest option for absolute beginners. See prefilled pods.
• Disposable vapes — single-use devices that come prefilled with 20mg nic salt. The simplest entry point but the most expensive long-term.

Devices to avoid with nic salts:

• Sub-ohm tanks (coils below 1.0 ohm)
• High-wattage box mods (anything above 25W)
• Direct-to-lung (DTL) setups

These deliver too much vapour per puff, meaning you'd inhale a dangerously high dose of nicotine very quickly. Stick to low-wattage MTL devices for nic salts — your throat and your wallet will thank you.

How Much Nic Salt E-Liquid Will You Get Through?

A typical 10ml bottle of 20mg nic salt e-liquid lasts most ex-smokers 3 to 7 days, depending on how heavily they vaped before. As a rough guide:

• 10-a-day former smoker: 1 bottle lasts roughly a week
• 20-a-day former smoker: 1 bottle lasts roughly 3-4 days
• Heavy smoker (30+ a day): may need 2 bottles a week initially

That works out far cheaper than smoking. A pack of 20 cigarettes in the UK costs around £16; a 10ml bottle of nic salt costs £3-£5 from most reputable vape shops.

Common Mistakes Beginners Make With Nic Salts

1. Buying the wrong strength. Going too low (e.g. 3mg freebase) when you've just quit a 20-a-day habit — you'll vape constantly and still feel deprived.
2. Using the wrong device. Putting 20mg nic salt in a sub-ohm tank produces a nicotine overdose-level hit. Always check the device is rated for nic salts.
3. Chain vaping. Nic salts absorb fast. Take a puff, wait 30-60 seconds, then decide if you need another. Many beginners over-vape because they're used to the slower absorption of cigarettes.
4. Ignoring storage. Nic salt e-liquid darkens over time as nicotine oxidises. Store bottles upright, in a cool, dark place. Avoid leaving them in a hot car.
5. Sticking with disposables forever. Disposables are easy but expensive. After a month or two, switching to a refillable pod kit cuts your costs by 60-70%.

Are Nic Salts Safe?

Public Health England and the UK government's official position is that vaping is at least 95% less harmful than smoking. Nic salts deliver the same nicotine your body is already used to, in a form that doesn't involve combustion, tar, or carbon monoxide — the three biggest health risks in tobacco smoke.

That said, nic salts are still nicotine, and nicotine is addictive. If you don't already smoke, you shouldn't start vaping. Nic salts are a smoking cessation tool, not a recreational product.

Frequently Asked Questions

Can I mix nic salts with freebase e-liquid?

Technically yes, but there's rarely a reason to. If you want a custom strength, buy a 10mg and a 20mg of the same flavour and blend them. Mixing different flavours is also fine but unpredictable.

Do Bic Salts taste different from freebase?

Slightly. Nic salts tend to taste smoother and slightly sweeter because the benzoic acid affects the flavour balance. Most people don't notice the difference once they're used to it.

What's the shelf life of nic salt e-liquid?

Unopened: roughly 2 years from manufacture. Opened: around 12 months if stored properly. Darkening of the liquid is normal and doesn't mean it's gone bad — but a noticeable change in smell or taste does.

Can I take nic salt e-liquid on a plane?

Yes, but in your hand luggage in containers under 100ml, following standard airport liquid rules. Don't put it in your checked luggage — the pressure change can cause leaks.

Ready to Start?

If you're new to vaping and switching from cigarettes, the simplest starting point is a refillable pod kit paired with a 20mg nic salt e-liquid in a flavour you'll enjoy. We stock over 40 nic salt e-liquids from trusted UK brands, and a full range of compatible pod devices — with free UK delivery on every order.

If you've got questions about which combination is right for you, our team is available on live chat 10am-8pm, 7 days a week. We've helped thousands of UK smokers make the switch — we'll help you too.