Mr Blue Elux Nic Salts 20mg

Overview

The Mr Blue Elux Nic Salts 20mg by Elux in Mr Blue at 20mg. Free UK delivery over £20, same-day dispatch on weekday orders before 4pm.

What Elux Nic Salts 20mg Mr Blue is

Elux Nic Salts 20mg Mr Blue is a 10ml bottle of nicotine salt e-liquid made for refillable pod kits. Elux is widely recognised in the UK for its disposable range, and this bottle brings the Mr Blue flavour into a format you can pour into a rechargeable device and use again and again. At 20mg/ml (2%) it sits at the maximum nicotine strength UK law allows in e-liquid, which makes it a common starting point for adult smokers who are moving away from cigarettes and want a firm, smooth hit from a small, low-power device.

The salt part of the name matters. Nicotine salts are nicotine bound to an organic acid, typically benzoic acid, rather than the freebase nicotine used in traditional e-liquid. In practice that means the throat hit stays noticeably gentler at 20mg than a freebase liquid of the same strength would, and the nicotine is absorbed a little faster. That is why salts suit pod systems running at modest wattage, where you want satisfaction in a handful of draws rather than long, cloud-heavy sessions.

Key details at a glance

• Product: Elux Nic Salts, Mr Blue flavour
• Nicotine: 20mg/ml (2%) nicotine salt
• Bottle size: 10ml, the largest refill bottle UK rules permit for nicotine e-liquid
• Base: a balanced VG/PG blend designed for pod devices (check the label on your batch for the exact ratio)
• Suited to: refillable pod kits and low-power mouth-to-lung (MTL) or restricted direct-to-lung devices, roughly 0.8 to 1.2 ohm
• Sold to: adults aged 18 and over only

It helps to be clear about what this product is not. It is an e-liquid, not a disposable vape, and it is not intended for refilling disposables. Single-use vapes have been banned from sale across the UK since 1 June 2025, so a rechargeable device plus a bottle like this one is now the standard route for flavoured nicotine vaping. It also produces less waste: one bottle can fill roughly five 2ml pods, and the device itself lasts for months or years.

The rest of this guide covers flavour, how the liquid performs, what hardware suits it, how to fill and use it, what to do when something goes wrong, and how it stacks up against alternatives, so you can decide whether it fits your setup before you order.

Mr Blue flavour profile

Mr Blue sits in the blue-fruit family, a very popular flavour group in UK vaping. Blue fruit profiles are typically built around a blue raspberry candy character, supported by berry sweetness and sometimes a light tartness on the exhale. Mr Blue follows that pattern: expect a sweet, tangy, candy-like blue fruit flavour rather than a realistic, juicy-berry one. The exact balance can shift a little from batch to batch, so treat the description below as a guide rather than a recipe.

• Inhale: a smooth, sweet blue fruit note, closer to blue candy than to fresh fruit
• Exhale: a gentle tang and berry brightness comes through, with a slight cooling feel in some batches
• Aftertaste: light, sugary and clean, without a heavy dessert or cream layer

At 20mg the nicotine adds its own presence at the back of the throat. This can flatten very delicate flavours, but candy-style fruit recipes like this one tend to hold up well because the sweetness and tartness are bold enough to sit alongside the throat hit. If you are moving from a 10mg liquid, you may notice the flavour feels slightly tighter and more focused simply because the nicotine is more present.

Sweet e-liquids carry sweeteners that can build up on the coil over time, so a fruity candy flavour such as Mr Blue will usually shorten coil life compared with a tobacco or an unsweetened menthol. Plan on swapping the pod or coil head every one to two weeks of regular use, and sooner if the taste turns flat or slightly burnt.

If you like the sound of the Elux style but want some variety, the wider Elux and Elux Legend ranges have included flavours such as:

• Blue Razz Lemonade
• Blueberry Sour Raspberry
• Cherry Cola
• Pink Lemonade
• Strawberry Ice
• Watermelon Ice
• Triple Mango

Availability changes, so check the Elux collection on this site for what is currently in stock in the nic salt format. A practical tip: if you vape a single flavour all day, your taste buds can adapt and the flavour seems to fade, a feeling often called vape tongue. Keeping a second flavour on hand and alternating between them, drinking water, and avoiding vaping straight after strong coffee or spicy food all help.

Performance and vapour delivery

Performance with a nic salt is mostly about the match between liquid and device, so it is worth setting expectations before the first fill. Used in a pod kit at around 8 to 15 watts, Elux Nic Salts 20mg Mr Blue gives a firm but smooth throat hit, a modest cloud of vapour and a quick sense of nicotine satisfaction. Most users find three to five draws enough for a session, compared with the longer and more frequent draws needed from lower-strength freebase liquids.

The balanced VG/PG base is designed to wick reliably through the small cotton, mesh or ceramic wicks found in pod systems. Thicker, high-VG liquids can starve a small coil and cause dry hits; a thinner balanced blend avoids that, at the cost of slightly smaller clouds. For the nicotine-focused vaper that trade-off is usually welcome.

How much will it actually last? Disposable vapes advertise puff counts, but those numbers are estimates measured under machine conditions and do not translate neatly to a bottle. A more honest measure is millilitres per day. As a guide:

• Light use (around 1ml a day): a 10ml bottle lasts about ten days
• Moderate use (around 2ml a day): about five days
• Heavy use (3ml a day or more): about three days or less

As a rough ballpark, a 10ml bottle on a typical low-power pod device will deliver several hundred to a couple of thousand draws, depending on wattage, draw length and how often you vape. Treat that as an estimate, not a promise: higher power burns through liquid faster, and a longer draw uses more liquid per puff.

Wattage has the biggest influence on how the liquid feels:

• Lower power (about 8 to 10W): cooler vapour, a smoother hit and a good balance of flavour and coil life
• Mid power (about 10 to 13W): warmer vapour, a little more flavour and a firmer hit
• Higher power (above 15W): hot and harsh at 20mg, faster liquid consumption, and usually unnecessary with salts

Consistency across a pod is generally steady, but keep the pod above about a quarter full. Running a pod nearly empty is the usual cause of dry, scratchy draws and shortened coil life. If you notice the vapour thinning out before the pod looks empty, it is more likely the coil than the liquid.

Bottle design and build quality

The liquid comes in a 10ml plastic bottle with a narrow nozzle designed to fit the small fill ports on pod kits. The body is soft enough to squeeze gently, which gives you control over how quickly the liquid comes out, and the thin tip lets you place it directly into a side-fill or bottom-fill port without a funnel. This is the standard format for UK nicotine e-liquid and it works well for its purpose.

Because the product contains nicotine, UK regulations require specific safeguards, and you should see all of the following on a genuine bottle:

• A child-resistant cap that needs to be pressed and turned to open
• A tamper-evident ring or seal that breaks when the cap is first opened
• A label showing the nicotine strength, ingredients, batch number and the required health warning
• Contact details for the responsible supplier

Check the seal when your parcel arrives. If the tamper-evident ring is already broken, or the bottle has leaked in transit, contact us with your order number and photos so we can put it right.

Build quality on bottles like this comes down to cap fit and nozzle finish. Open the cap slowly the first time, because pressure differences in transit can push a little liquid up the nozzle. Wipe the tip with a tissue after each fill, close the cap firmly and keep the bottle upright.

Storage and safety. Nicotine is toxic if swallowed and can be absorbed through the skin. A 10ml bottle of 20mg/ml liquid holds a total of 200mg of nicotine, which is enough to be dangerous to a child or a pet. Keep it out of reach, store it somewhere cool and dark (heat and sunlight degrade both flavour and nicotine), and never leave it in a car on a warm day. If liquid gets on your skin, wash it off with soap and water straight away. Use the liquid before the expiry date printed on the label; flavours usually hold up for a year or so when stored properly.

Recycling and disposal. Only put an empty bottle in household plastic recycling if your local council accepts it, and check the council's guidance first because rules vary by area. Do not pour leftover liquid down the sink; take any unwanted liquid to your local household waste recycling centre. Used pods and coil heads are small plastic and metal items, so check whether your council or a local drop-off point takes them rather than adding them to the general bin by default.

Compatible devices, coils and mesh technology

This liquid is made for pod-style hardware. The sweet spot is a coil resistance of roughly 0.8 to 1.2 ohm running at about 8 to 15 watts, either in a refillable pod kit or a compact tank that restricts airflow. Within that range, the three common coil types behave a little differently with a nic salt.

• Mesh coils: a thin sheet of metal mesh in place of a coiled wire. The larger surface area heats evenly and wicks quickly, which tends to produce fuller flavour and handles the balanced VG/PG base without trouble. Many current pod kits ship with mesh pods, and they are a good match for fruit and candy profiles like Mr Blue.
• Ceramic coils: porous ceramic wicks with the heating element embedded. They run smoothly, last a long time and resist burning, though they can take a little longer to saturate after filling. Waiting a few minutes before the first draw solves that.
• Cotton wire coils: a coil of resistance wire wrapped in organic cotton, the traditional design. They deliver good flavour at low cost, but are more prone to dry hits if the pod runs low.

Salts do not need the high power that sub-ohm vaping requires, and in fact they work against it. Putting 20mg nic salt in a sub-ohm tank at 40 watts or more produces hot, harsh vapour and delivers far more nicotine per draw than most people want. If your device has a coil below about 0.6 ohm, choose a lower-strength freebase liquid instead.

Priming and coil life. Whatever coil you use, let a freshly filled pod rest for five to ten minutes, then take a few gentle draws without holding the button for long. This ensures the wick is saturated before any heat is applied. Replace the coil when the flavour fades, the vapour becomes thin, or you notice a burnt or acrid taste.

A note on disposables. Elux disposables use pre-filled pods and fixed batteries, and this bottle is not designed for refilling them. Opening, drilling or refilling a sealed device is unsafe, can damage the battery and defeats the purpose of buying a proper refillable kit. If you need a device, look for a pod kit with a user-fillable pod and a replaceable coil or pod cartridge.

When choosing hardware, check three things on the product listing: the coil resistance, the pod capacity (2ml is the UK maximum) and the fill method. A pod that is easy to fill without spills is worth more day to day than a few extra milliamp-hours.

Battery and charging for your device

A bottle of e-liquid has no battery of its own, so charging is a question for your device. Battery behaviour still affects how the liquid performs, so it is worth understanding what to expect from the kind of device this liquid is meant for.

Most refillable pod kits use built-in lithium-ion batteries of roughly 400 to 1,000 mAh. As a rule of thumb:

• About 400 to 600 mAh: slim, pocket-friendly pens, typically a day of light to moderate use per charge
• About 700 to 1,000 mAh: chunkier kits, often a day to a day and a half of moderate use

Those are estimates. Real battery life depends on wattage, how often you vape and the age of the battery. Because nic salts work at low power, they are gentle on batteries compared with sub-ohm liquid, and a small pod kit can get through a full day on a charge while drawing 20mg.

Charging safely.

• Use the USB-C cable supplied with the device, or a good-quality replacement, and a standard 5V phone-style charger or a computer port
• Small batteries usually need 30 to 90 minutes for a full charge
• Do not charge on a bed, sofa or other soft surface, and do not leave a device charging unattended overnight
• Do not vape while charging unless the device is specifically designed for pass-through use
• Stop using the device and move it somewhere safe if it swells, becomes very hot or smells of burning
• Do not carry a device loose in a pocket with coins or keys

Liquid and battery interact in one more way. If liquid leaks into the battery compartment or charging port, dry the device and leave it before charging. Sweet liquids in particular can gum up contacts, so clean the metal connection points on the pod and device with a dry cotton bud now and then.

Recycling devices and batteries. Lithium-ion batteries cause fires in bin lorries and recycling plants when they end up in household waste. In the UK, a vape device that has reached the end of its life should be taken to a recycling drop-off point, such as a household waste recycling centre, or to a shop that offers take-back for vapes and small electricals. Do not put it in your kerbside recycling or general bin, and make sure the device is switched off before you drop it off.

Nicotine strength: 20mg guidance and UK limits

This bottle is 20mg/ml, which is 2% nicotine by volume. That is the legal maximum for nicotine e-liquid sold in the UK, alongside two other limits that shape the market: refill bottles cannot exceed 10ml, and tanks or pods on devices cannot exceed 2ml. It is why you see 10ml bottles and 2ml pods everywhere. These rules apply equally to every brand, so a 20mg salt from one brand is not stronger on paper than a 20mg salt from another.

Choosing a strength is a personal decision, and nothing here is medical advice. Many people use the following as a starting point:

• 20mg: adult smokers who are used to roughly ten or more cigarettes a day, or who smoke within the first half hour of waking
• 10mg: lighter smokers, those stepping down, and anyone who finds 20mg too strong or too harsh
• Below 10mg: people who are close to stopping nicotine altogether or who vape mainly out of habit

If you pick a strength that is too low, you tend to notice it in cravings that return quickly, many more draws, chain vaping, or drifting back to cigarettes. If you pick one that is too high, the usual signs are nausea, dizziness, headache, a racing heartbeat, sweating or a throat hit that feels harsh even at low power. If that happens, stop, get some fresh air, sip water and consider a lower strength.

Salts feel smoother than freebase at the same strength, so do not assume 20mg salt is the same as 20mg freebase. It is not a one-to-one swap. The smoothness lets people take in more nicotine than they realise, which is also why salts are better kept to low-power devices and shorter sessions.

If you want to cut down over time, consider keeping a 10mg bottle of the same flavour alongside this one. Stepping down from 20mg to 10mg, and later to a lower level, is a common route, and free local stop smoking services across the UK can pair vaping with behavioural support. Search for your local NHS stop smoking service to find out what is available near you.

Nicotine is addictive and this product is only for adults. It should not be used by anyone under 18, by non-smokers, or during pregnancy or breastfeeding. If you have a heart condition, high blood pressure, diabetes or take regular medication, speak to your GP before using nicotine products.

Who it is for and who should skip it

A product like this is a good fit for a specific kind of adult user and a poor fit for others. Being honest about that saves money and frustration.

It suits:

• Adult smokers who want a strong nicotine hit in a small, smooth, low-power device
• Owners of pod kits with 0.8 to 1.2 ohm pods who want a refill that matches their hardware
• Vapers who enjoy sweet, tangy blue fruit flavours rather than tobacco, menthol or dessert profiles
• People replacing disposables who want to cut waste and lower their cost per millilitre
• Anyone who prefers a short, satisfying session over long, cloud-heavy ones

You should skip it if:

• You are under 18, or you have never smoked or used nicotine. Nicotine is addictive and offers a non-smoker no benefit
• You use a sub-ohm tank at high wattage, where a lower-strength freebase liquid is a better match
• You smoke only a few cigarettes a week or find 20mg too strong, in which case a 10mg bottle is the sensible choice
• You dislike sweet or tangy flavours, in which case a tobacco or menthol option would suit you better
• You want a no-fuss device with no filling at all. Since disposables are banned, consider a closed pod kit with pre-filled pods instead
• You are pregnant or breastfeeding, or you have a heart condition, in which case speak to your GP first

One more group worth naming is the first-time buyer who has picked up a kit and is unsure about strength. If you have been smoking a pack a day, 20mg is a reasonable place to start. If you smoke a handful a day, buying 10mg first avoids wasting a bottle on a strength that turns out too strong for you.

A final consideration is routine. Refillable vaping asks a little more of you than a disposable ever did: you fill pods, charge a device, change coils and keep spare pods in a bag. Most people settle into it within a week, but if that sounds like a chore you would resent, a closed pod system may be a better fit than a bottle.

How to fill and use it

Filling a pod takes a minute once you have done it once or twice. The steps below apply to most pod kits, but your device's manual takes priority if it differs.

• Step 1, prepare: Wash and dry your hands, switch the device off and remove the pod.
• Step 2, open the fill port: Most pods have a silicone plug on the side or the base. Peel or pull it back gently. Some pods fill from the mouthpiece end, so check the instructions.
• Step 3, fill: Press the bottle's nozzle into the port and squeeze slowly. Avoid the central air tube, which should stay dry, and stop at the max line or a little below it. Overfilling is the main cause of leaks.
• Step 4, seal and wipe: Push the plug back until it sits flush and wipe any liquid from the pod and the nozzle.
• Step 5, wait: Let the pod rest for five to ten minutes so the wick soaks through.
• Step 6, prime and vape: Insert the pod, set a low power (about 8 to 10W if adjustable) and take a few short, gentle draws before settling in.

Draw style matters. Nic salts are designed for mouth-to-lung use: draw into the mouth for two to three seconds, pause briefly, then inhale. Short, spaced draws give better flavour and avoid overheating the coil. Chain vaping does the opposite, and raises nicotine intake faster than you expect.

Top up when the pod is about a quarter full, not when it is empty. Do not mix this liquid with other flavours or nicotine strengths in the pod, because the result is hard to predict and leaves you unsure of the real strength. Do not add anything to the bottle.

If your device is draw-activated, there is no button to press and it fires when you inhale. If it is button-activated, press and hold only while you draw. Many kits have a lock function, usually by pressing the button several times, which is worth using when the device is in a bag or pocket.

Finally, remember where you can vape. Many indoor spaces, workplaces, trains, buses and venues restrict or ban vaping, and individual operators set their own rules. Check signage, and be considerate to people around you, especially in shared spaces and near children.

Troubleshooting common problems

Most problems with a pod setup have simple causes. Work through the likely ones before assuming the liquid or the device is faulty.

• Dry or burnt taste: usually the pod is running low, the coil is worn, or the power is too high. Refill the pod, prime it for a few minutes, lower the wattage and replace the pod if the taste does not clear after a refill.
• Gurgling or spitting: too much liquid has reached the airway, often through overfilling or tilting. Remove the pod, wipe the mouthpiece, gently blow through the airway and reinsert it.
• Leaking from the pod: overfilling, a loose plug or air pressure changes (flights, drives through hills) are the usual causes. Fill to about 80 to 90 per cent, press the plug in firmly and store the device upright.
• Weak flavour: could be a tired coil, vape tongue or a pod that has not soaked. Try a fresh pod, take a break from the flavour and swap to a different one for a day.
• Harsh throat hit: power may be too high, draws too long or the strength too high for you. Lower the wattage, shorten the draws and consider a 10mg bottle.
• Dizziness, nausea or headache: you may be taking in too much nicotine. Stop vaping, get fresh air, drink water and try a lower strength or fewer draws.
• Device will not fire: check the charge, make sure the pod is seated and clean the contacts with a dry cotton bud. If the pod is flooded, let it dry first.
• Sticky bottle tip or residue: wipe with a dry tissue after each fill. Never rinse the bottle with water to reuse it.
• Bubbles in the pod after filling: tap the pod gently on a hard surface and wait a few minutes for the liquid to settle.

If a problem persists with a new, correctly filled pod, the fault may lie in the hardware. Try a fresh pod from the same pack, and if the issue continues, check your device's warranty terms and contact the seller of the device.

If a bottle arrives damaged, leaking or with a broken seal, contact us rather than using it, and include your order number and a photo. If you ever swallow the liquid or get a large amount on your skin or in your eyes, seek medical advice straight away, and keep the bottle to hand so you can tell staff the strength.

Value for money

Value with e-liquid is about cost per day, not the sticker price of the bottle, so it helps to work through the arithmetic. The price shown on this page is for a single 10ml bottle. At 2ml a day, one bottle covers about five days; at 1ml a day, it covers around ten.

Here is a worked example, using round figures purely to show the method (check the current price on this page): if a bottle costs £4 and you use 2ml a day, your liquid spend is about £0.80 a day. Add a pod or coil at, say, £3 every ten days to two weeks, which adds roughly 20 to 30 pence a day. The total comes to around £1 a day. A 20-pack of cigarettes in the UK now costs well over £15, so a pack-a-day smoker who switches completely may see a large saving, although the device itself is a one-off cost up front.

A few other points affect value:

• Reusable hardware: the device and charger are used for months or years, in contrast to disposables, which can no longer be sold in the UK anyway
• Multi-buy offers: buying several bottles at once often lowers the per-bottle price, and the liquid keeps for around a year if stored properly
• Less waste per millilitre: one bottle replaces five pre-filled 2ml units, with far less plastic and no battery in the bin
• Running costs: pods or coils, an occasional replacement device and the charging cable all add to the true cost

An honest caveat: nicotine salts usually cost slightly more per millilitre than basic freebase liquid, and are priced above a large shortfill per millilitre, so if you use a high-wattage sub-ohm tank you would pay more and use more than you need to. The value case here is strongest for pod users who vape small amounts of a high-strength liquid. Branded liquids from large names also tend to cost a little more than lesser-known house brands, because part of the price reflects brand recognition. Whether that premium is worth paying depends on whether you specifically like the Mr Blue flavour.

If you are unsure, buy one bottle rather than a multipack on the first order. Once you know how fast you get through it and whether the flavour holds your interest after a week, stocking up becomes a safe decision rather than a gamble.

How it compares with the alternatives

Comparing e-liquids fairly means separating what is regulated from what is a matter of taste. Nicotine strength limits, bottle size, child-resistant packaging and labelling are the same across UK brands, so the differences come down to flavour recipe, sweetness, base ratio, price and availability.

• Against other 10ml 20mg salts (for example IVG, Nasty, Hayati, Dinner Lady or Vampire Vape salt lines): all sell nicotine salts in this format. Specialist e-liquid houses often offer a larger flavour menu and more detail on the VG/PG split and nicotine type. Elux brings name recognition and a flavour set that mirrors what many people already know from its disposables, though its salts range may offer fewer choices than a dedicated e-liquid house. If you already like a given Elux flavour, a bottle lets you keep it.
• Against 10mg salts of the same flavour: identical liquid apart from strength. Choose by your smoking habits, as described above.
• Against freebase nicotine liquid: freebase at 3 to 6mg suits sub-ohm tanks and larger clouds with long draws. It is cheaper by volume and the 50ml shortfill route is economical, but it is a poor match for small pod kits and takes more liquid to reach the same nicotine level.
• Against pre-filled closed pods: these are tidy and avoid filling mistakes and spills, but they limit you to the flavours and strengths the manufacturer offers, and each pod costs more per millilitre. A refillable setup with a bottle like this is cheaper and gives more choice, at the cost of a minute's fiddling.
• Against nicotine pouches: a different category entirely, with no vapour, no device and a different habit pattern. Some adults prefer one, some the other, and they are not interchangeable.

Overall, Elux Nic Salts 20mg Mr Blue is a straightforward option for adults who already know they want a 20mg salt in a blue fruit flavour. It will not give you the flavour variety of a specialist liquid house, or the cloud production and economy of a shortfill in a sub-ohm tank, and it is not trying to. If you are unsure, start with a single bottle, try it for a week on a low-power pod, and see how the strength and flavour sit with you before stocking up.

Whichever route you take, keep the same priorities: buy from a UK seller that checks age, use hardware matched to the liquid, store the bottle safely, and recycle devices and batteries at a proper drop-off point rather than the bin.