🚚 Free UK delivery over £20✦⚡ Same-day dispatch before 4pm✦⭐ Rated 4.8/5 by 12,000+ UK vapers✦🔒 Age-verified checkout · 18+✦✅ 100% genuine, TPD-compliant stock✦💧 5 for £10 nic salts✦💨 3 for £10 prefilled pods✦🎁 Buy 2 for £20 · big-puff kits✦📦 Discreet plain packaging✦💷 Multibuy bundles across the store✦🚚 Free UK delivery over £20✦⚡ Same-day dispatch before 4pm✦⭐ Rated 4.8/5 by 12,000+ UK vapers✦🔒 Age-verified checkout · 18+✦✅ 100% genuine, TPD-compliant stock✦💧 5 for £10 nic salts✦💨 3 for £10 prefilled pods✦🎁 Buy 2 for £20 · big-puff kits✦📦 Discreet plain packaging✦💷 Multibuy bundles across the store✦
Mad Blue Bar Series Nic SaltsBar Series
Bundle Offer
By BAR SERIES

Mad Blue Bar Series Nic Salts

★★★★★ 4.8 Read all 300 reviews
6,078 sold in the last 30 days
£2.49
In Stock · Ships Today

Don't miss out on these exclusive deals!

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BUY 5 FOR £105+£2.00£2.45 OFF
⏱Order within — for same-day dispatch (Mon-Fri before 4pm)
📦For delivery tomorrow with Royal Mail Tracked 24

Key features

  • Multibuy offer available: BUY 5 FOR £10
  • 50/50 PG/VG. Ideal for pod kits & MTL
  • Smooth nic salt for a fast, satisfying hit
  • Flavour: Mad Blue
  • Available in 20mg
  • 100% genuine, UK-compliant stock
  • Fast, tracked UK delivery
🚚Free Next Day DeliveryOn orders over £20
💬Questions?Contact our UK team
🔒100% GenuineAge-verified checkout

Product Highlights

Key specs at a glance
💧20mgNic Strength
🍬1+Flavour
🏷️Bar SeriesBrand
📦E-LiquidFormat
🧪20mg/mLNic Salt

Vape Shop Online's Verdict on the Mad Blue Bar Series Nic Salts

What our data says
Popular ChoiceMarket signal
1,832Sold last 30 days
4.8 / 5Avg customer rating
300Verified reviews
TPD-compliantUK / MHRA registered
In stock todayDispatch status

Overview

The Mad Blue Bar Series Nic Salts by Bar Series in Mad Blue at 20mg. Pick up the BUY 5 FOR £10 multibuy — free UK delivery over £20 and same-day dispatch on weekday orders before 4pm.

Bar Series Nic Salts Mad Blue: what you are buying

Bar Series Nic Salts Mad Blue is the Mad Blue option in the Bar Series Nic Salts range, priced at £2.95. We list what the product actually is rather than padding it with specifications we cannot verify.

The full Bar Series range is at Bar Series, and this line alone runs to 9 flavours. We only list stock sourced through UK distributors.

Choosing your nicotine strength

This e-liquid is listed in 10mg and 20mg. UK law caps nicotine at 20mg per ml, so that is the strongest you will find anywhere.

  • 20mg gives the firmest throat hit and suits heavier former smokers, or anyone who finds lower strengths leave them vaping more often.
  • 10mg is the common middle ground: enough to satisfy without the harshness some find at 20mg.

Going too low often means vaping more to compensate, which defeats the point. 10mg options and 20mg options are browsable separately if you want to compare.

Getting the best from the bottle

The 10ml bottle size is a legal limit for nicotine-containing liquid, not a packaging choice.

  • Prime a fresh coil or pod before the first draw: fill it, then wait a few minutes so the wick soaks properly.
  • Store bottles upright, out of sunlight and away from heat, which keeps the flavour truer for longer.
  • A burnt taste usually means the wick has dried out rather than the liquid being at fault.
  • Keep bottles away from children and pets, and use the child-resistant cap as intended.

Small habits like priming and sensible storage do more for flavour than anything else.

What the multibuy actually saves you

The offer on this line is buy 5 for £10. At £2.95 each, 5 would normally be £14.75, so the bundle saves £4.75 and works out at £2.00 apiece.

That sits under the £20.00 free delivery threshold, so either add something small or take the offer twice. You can mix flavours within the offer, so use it to try something new alongside a known favourite.

UK delivery is free once your basket passes £20. Weekday orders placed before 4pm go out the same day.

Ordering, delivery and the legal bit

This is an 18+ product and age verification applies to every order. Nicotine is addictive, and these products are for adults who already smoke or vape.

Browse all e-liquids, or head to the sale if price is the deciding factor. If you are unsure whether this fits your device, check the listing details before ordering.

Is Mad Blue the right pick for you?

The quickest way to choose is to ask which flavour family you reach for most. Mad Blue is best judged against the other options in this line rather than in isolation.

  • If you want an all-day vape, a more balanced profile usually lasts longer before palate fatigue sets in.
  • If you rotate flavours, pair this with something from a different family so your palate resets between them.
  • On cooling, this reads as an uncooled profile, which suits anyone who finds menthol overpowering.
  • If you are switching from cigarettes, strong sweet flavours can feel unfamiliar at first, and many adults settle after a week or two.

Nobody gets every flavour right first time, which is why the multibuys exist.

Other flavours in the Bar Series Nic Salts range

Sticking with the line you already like is easier than starting from scratch elsewhere. 9 flavours sit under this name, including:

Rotating between two profiles keeps both tasting sharper for longer.

Where this sits in the Bar Series range

It is worth knowing what else the brand makes before you commit to one listing. We stock 10 Bar Series products, running from £2.95 to £2.95. That makes it a small, specialist range rather than a catalogue brand.

The full lineup is on the Bar Series page.

Staying within a brand you already rate is the low risk way to try something new.

How it compares to the rest of the category

Judging a product in isolation is how people end up disappointed. We list 736 products in this category. At £2.95, this one sits at the affordable end.

  • Multibuy deals are where the price per unit drops hardest, and they can be mixed across flavours.
  • Reduced lines carry 1,558 products if the budget is the deciding factor.
  • Prefilled pods cost more per millilitre but remove the refilling entirely.

None of those is objectively right. They suit different routines and different budgets.

The running cost, worked out

Headline prices hide the number that actually matters, which is what a week costs you.

We would rather leave the arithmetic blank than guess at a rating.

  • The buy 5 for £10 offer is the single biggest lever on that number.
  • Baskets over £20.00 ship free in the UK, so building to that threshold beats paying postage twice.
  • Nicotine strength changes consumption: many adults find a higher strength means reaching for the device less often.

Mad Blue against the rest of the line

Same product, different flavour, is the fairest comparison available. There are 9 options under this name:

Most regulars keep two on the go rather than committing to one. The buy 5 for £10 offer makes that cheap to do.

Why the UK market looks like this

A lot of the format decisions here were made by law, not by marketing. UK rules cap nicotine at 20mg per ml, nicotine e-liquid bottles at 10ml, and prefilled pods and tanks at 2ml. That is why you buy small bottles often rather than one large one.

Since single-use devices were banned, the market moved to rechargeables. Rechargeable kits with replaceable pods took their place, which is why a device now comes with a charging port and a pod you swap rather than a sealed unit you bin. For most people it works out cheaper over a month, provided you stay on one platform.

Everything we sell is UK-compliant stock bought through UK distribution. This is an 18+ product and orders are verified before dispatch.

More flavours in this line

The rest of the line, if you want to compare before choosing.

Two on the go beats one, because alternating keeps both tasting fresher.

Delivery, returns and buying with confidence

The buying side is straightforward. Weekday orders placed before 4pm are dispatched the same day, and UK delivery is free once your basket reaches £20.00. Delivery choices, including tracked services, appear at checkout.

Consumables cannot be returned once opened, for obvious hygiene reasons. Anything faulty or wrongly sent is our problem to fix, not yours. This is an 18+ purchase and orders are age-checked before they ship.

Nicotine is highly addictive, and nothing here is intended for non-smokers.

Looking after it, and what goes wrong

Most complaints about flavour come down to handling rather than the product.

  • Prime before the first draw. Fill, then wait a few minutes so the wick soaks fully. A dry first pull is what burns a coil.
  • Keep it cool and upright. Heat thins liquid and pushes it through seals, which is why a hot car is the usual cause of a leak.
  • Muted flavour is often you, not it. Palate fatigue is common on a single flavour, and rotating to a second profile resets it.
  • Store away from children and pets, and recycle spent hardware rather than binning it loose.

These are small habits that pay back in flavour consistency.

Buying this as a first purchase

New to this format? Three decisions cover almost everything.

  1. Format. A bottle is the cheapest way to vape per millilitre, but you refill it yourself. Prefilled pods remove that job at a higher cost.
  2. Strength. This comes in 10mg and 20mg. Heavier former smokers usually start high and step down.
  3. Flavour. You are looking at Mad Blue. Pick a second from a different family so you have something to rotate to.

Get those three right and the rest is detail. The deals page is the cheapest way to try more than one at a time.

Browse related ranges

Related ranges worth a look before you decide.

Or stay with the brand: all Bar Series products, 10 in total. Brand familiarity is worth more than it sounds when flavours are hard to judge blind.

Building a rotation instead of buying one thing

Nearly everyone who vapes daily ends up running two or three flavours rather than one, and there is a reason for it. Palate fatigue sets in faster than people expect. A profile you loved on day one can taste flat by day ten, not because the product changed but because your palate stopped noticing it.

The fix costs nothing. Keep two profiles from genuinely different families on the go, and alternate between them. Something sweet paired with something sharp, or a fruit paired with a menthol, resets the palate each time you switch. Two flavours in rotation will each last noticeably longer than either would alone.

Sensible pairings from the same line:

The buy 5 for £10 offer exists precisely for this, and it can be mixed across flavours rather than spent on one.

Where Bar Series fits in the wider market

Brands in this category fall into two camps, and it is worth knowing which one you are buying from. We list 10 Bar Series products, a compact range built around a few core lines. The complete list is on the Bar Series page.

Breadth cuts both ways. What it does give you is somewhere to go when you want a change without gambling on an unfamiliar name. Brands that make both hardware and liquid tend to design them to work together, which is why pods from one family rarely fit another. Brands that only make liquid put their effort into flavour development instead, and often outperform the hardware houses on taste alone.

Either way, the practical advice is the same. Once you find a brand whose profiles suit your palate, its other lines are a far safer bet than a random product at the same price. That is worth more than it sounds in a category where you cannot try before you buy. The full category runs to 736 products if you would rather compare across brands than within one.

Flavour

Mad Blue

What's in the Box?

  • 1 x Mad Blue Bar Series Nic Salts bottle
  • Child-resistant, tamper-evident cap
  • Nicotine warning & safety insert

How to use

  1. Fill your pod or tank with 1.5-2 ml of liquid
  2. Let the coil sit and prime for 3-5 minutes
  3. Start with short mouth-to-lung draws
  4. Top up when liquid reaches the fill line

Specifications

BrandBar Series
Product typeE-Liquid
Nicotine strength20mg
Available flavours1 (Mad Blue)
Price£2.49
Multibuy offerBUY 5 FOR £10
AvailabilityIn stock — same-day dispatch
ComplianceUK TPD-compliant, MHRA-registered

Pros & cons

Pros

  • Best value per ml in the category
  • Choose your own device and coil
  • Available in a wide strength ladder

Cons

  • Refilling can leak if you overfill
  • Coil priming has a small learning curve
  • You handle the bottle — less discreet than pods

Customer Buying Tips

  • Match the strength to how much you smoked: 20+/day → 10-20 mg nic salt; 10/day → 10 mg; under 5/day → 3-6 mg freebase.
  • Match the ratio to your device: pod kits take 50/50, sub-ohm tanks take 70/30 shortfill.
  • Don't overfill: leaving the airhole clear prevents gurgling and leaking.
  • Shake before use so the nicotine and flavour integrate evenly.

More from Bar Series

Similar e-liquids

Explore related categories

About Bar Series

Bar Series delivers shortfills, gold-edition liquids and prefilled pods that mimic the big-name disposable bar flavour library. Strong value in multibuy-friendly packs.

Shop the full Bar Series range →

Frequently asked questions

What nicotine strengths does it come in?

It is listed in 10mg and 20mg. UK law caps nicotine at 20mg per ml, so that is the strongest available from any retailer.

Do I have to be 18 to buy this?

Yes. Sales are strictly 18+ and every order is age-verified. Orders that cannot be verified are refunded rather than sent.

What does Mad Blue actually taste like?

The listing name is the best guide we can give without inventing tasting notes. If you want a safer bet, pick a family you already enjoy.

How should I store it?

Upright, out of direct sunlight and away from heat. Warmth thins liquid and dulls flavour, and a hot car is the most common cause of a leak.

What if I do not like the flavour?

Flavour is personal and we cannot resell an opened consumable, so the multibuys are the low risk way to try more than one. Buying a pair from different families is the usual approach.

When will my order arrive?

Weekday orders placed before 4pm are dispatched the same day. UK delivery is free once your basket passes £20, and paid options are shown at checkout.

Why is the puff rating so high when a pod only holds 2ml?

Because UK rules cap a prefilled pod at 2ml, a five-figure rating describes what the system delivers across the pods you use, not what sits in one pod.

Delivery & returns

Royal Mail Tracked 24 (Next-Day): £1.99, FREE on orders over £20.

DPD Next Working Day: £3.99 (£2.99 over £20), FREE over £100.

Same-day dispatch on orders placed before 4pm Mon-Fri. See our delivery page for full details.

Customer Reviews

4.8
★★★★★Based on 300 verified reviews
5★
76%
4★
18%
3★
4%
2★
1%
1★
1%
★★★★☆

Top-quality product

Really pleased with the order overall. Everything arrived as expected, well packed, fast dispatch.

Emily C. · Verified buyer
★★★★★

Better than my last brand

Ordered Wednesday evening, arrived Thursday morning. Everything sealed, genuine, exactly what I expected.

Toby M. · Verified buyer
★★★★★

Convinced my mate to switch too

Taste is proper — no chemical aftertaste or anything. Just clean flavour throughout. Love it.

Elena K. · Verified buyer
★★★★☆

Quality is there

Been looking for something like this for ages. Finally found a brand that doesn't disappoint.

Marcus T. · Verified buyer
★★★★★

Smooth and tasty

Switched from a well-known brand and this is actually better, especially for the price. Will reorder.

Lily O. · Verified buyer
★★★★★

Best one I've tried this year

Delivery was super fast and the product is genuine. I've had fakes before so this was a relief.

Reuben P. · Verified buyer

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