The short answer
The original Hayati Pro Ultra is listed at 2% nicotine, while the Pro Ultra Plus kit and its compatible replacement packs are listed at 20mg/ml nicotine salt. Those concentrations are equivalent and sit at the UK consumer limit. The checked products are not nicotine-free; we did not verify a 0mg or lower-strength option in the checked Plus range.
Key points
- 2% and 20mg/ml describe the same nicotine concentration.
- 20mg/ml is the UK consumer limit, not a personal dose recommendation.
- The checked Plus flavours and replacement packs do not offer a lower listed strength.
- Verify nicotine-free claims against the full model name and the actual pack marking.
A strength label answers a different question from a flavour name or a puff count. This guide helps existing adult vapers distinguish the original Pro Ultra from the Plus, read the nicotine units and check a lower-strength claim. Product information and official guidance were checked on 4 November 2026.
Hayati Pro Ultra nicotine strength by model
| Comparison point | Verified strength | What the evidence covers |
|---|---|---|
| Original Pro Ultra | 2%, equivalent to 20mg/ml | The original manufacturer specification; this is not a current UK sales recommendation. |
| Pro Ultra Plus kit | 20mg/ml nicotine salt | The manufacturer lists 20mg; Vape Forest gives the full concentration and liquid type. |
| Pro Ultra Plus replacement pack | 20mg/ml nicotine salt | The compatible Plus replacement packs currently listed by Vape Forest. |
Important context: Specifications checked on 4 November 2026. Match the full model name and the nicotine marking on the actual pack.
What does 20mg/ml or 2% nicotine mean?
Both labels describe the concentration of nicotine in the liquid. 20mg/ml means 20mg of nicotine in each millilitre of e-liquid. The MHRA expresses the same concentration as 2%.
That figure is not the total nicotine in the whole device, and it is not the amount delivered by one puff. You cannot turn a puff-count claim into a measured nicotine dose using the strength label alone.
The manufacturer’s Plus specification abbreviates the strength to 20mg. The Vape Forest Plus kit specification gives the full notation, 20mg/ml, and identifies the liquid as nicotine salt. Nicotine salt describes the formulation; it does not mean nicotine-free.
Is the Hayati Pro Ultra strong?
It is at the strongest concentration permitted for regulated consumer nicotine e-liquids in the UK. The MHRA limit is 20mg/ml, which matches the strengths above.
That answers the concentration question. It does not predict how harsh a draw will feel, how much nicotine a person will absorb or whether this strength suits them. Flavour names and cooling descriptions are not nicotine ratings.
A legal maximum is not a recommended starting strength. For adults using vaping to stop smoking, the NHS advises choosing nicotine strength to manage cravings and getting advice from a stop smoking service or specialist retailer. This guide does not assign an individual nicotine dose.
Is there a nicotine-free or lower-strength Pro Ultra?
We did not verify a 0mg or lower-strength option in the Pro Ultra Plus manufacturer pages and Vape Forest kit and refill listings checked on 4 November 2026. Those Plus records specify 20mg/ml. The original Pro Ultra specification lists 2%, so that version is not nicotine-free either.
This is a finding about the checked products, not proof that every market or every similarly named Hayati device has identical options. The manufacturer’s Plus product listing presents flavour variants; a different flavour does not establish a different strength.
If you see a nicotine-free claim, match the full model name and the nicotine marking on its packaging to the listing. A 0mg/ml marking means the product is labelled nicotine-free. If the details are missing or disagree, get the seller to clarify the exact pack before relying on the claim.
Do Plus replacement pods change the strength?
The checked Pro Ultra Plus replacement packs contain 20mg/ml nicotine salt, matching the kit. Switching flavour within this listed range therefore does not reduce the nicotine concentration.
These packs are for the Plus model. They are not a compatibility claim for the original Pro Ultra, and they are not an invitation to open sealed pods and dilute their contents. Our guide to replacing Pro Ultra Plus prefilled pods explains the intended replacement method.
What if you want to reduce your nicotine strength?
Check the available strengths before choosing a device or replacement system. With the verified Plus range, changing flavour is not a way to step down. You would need a product that explicitly offers the lower concentration you intend to use.
The NHS guide to quitting vaping describes gradual reductions in strength and suggests slowing down if a reduction makes you vape more. If vaping helped you stop smoking, seek support if cutting down creates a risk of returning to cigarettes.
Hayati Pro Ultra nicotine questions
Does the original Hayati Pro Ultra contain nicotine?
Yes. Hayati’s original Pro Ultra specification lists 2%, equivalent to 20mg/ml. The original and Plus remain different devices even though their listed nicotine concentration is the same.
Is 2% nicotine the same as 20mg/ml?
Yes, in the e-liquid concentration notation used here. It describes nicotine per millilitre, not a dose per puff or a total for the device.
Does nicotine salt mean nicotine-free?
No. The Plus liquid is listed as 20mg/ml nicotine salt and contains nicotine. Nicotine-free liquid would be labelled 0mg/ml.
Does a different Hayati flavour have less nicotine?
Not in the Plus kit and replacement range checked for this guide. Those listings give the same 20mg/ml concentration across flavours. Check strength separately from flavour.
Is this strength suitable for someone who does not smoke?
Vaping is not intended for non-smokers. NHS advice is that non-smokers and children should not start vaping. Nicotine is addictive, and a permitted concentration is not a reason to start using it.
Live products, prices and stock
This article explains the question or review. Use the linked shop pages for current product options, prices and availability.
Sources and verification
- Original Pro Ultra manufacturer specificationHayatiChecked: 4 November 2026
Supports: Original Pro Ultra nicotine specification is 2%; original model identity is distinct from Plus.
- Pro Ultra Plus manufacturer specificationHayatiChecked: 4 November 2026
Supports: Plus manufacturer specification gives nicotine strength as 20mg. Full mg/ml notation and nicotine salt attribution come from the linked Vape Forest product records.
- Pro Ultra Plus manufacturer flavour listingHayatiChecked: 4 November 2026
Supports: The checked Plus listing presents flavour variants without a separate lower-strength or nicotine-free selector.
- E-cigarettes: regulations for consumer productsMHRAChecked: 4 November 2026
Supports: Maximum nicotine concentration for the regulated consumer e-liquids is 20mg/ml.
- E-cigarette safety and consumer adviceMHRAChecked: 4 November 2026
Supports: Official nicotine concentration notation equates 20mg/ml with 2%.
- Vaping to quit smokingNHSChecked: 4 November 2026
Supports: Nicotine is addictive; strength choices should manage cravings when stopping smoking. Non-smokers and children should not start vaping.
- How to quit vapingNHSChecked: 4 November 2026
Supports: Gradual nicotine reduction, signs of reducing too quickly and avoiding a return to smoking.
