Important: This guide is for adults who already smoke or vape and want to understand nicotine labels and reduce risk. It is not personal medical advice, and it is not intended for people who do not currently use nicotine. In Australia, a pharmacist, medical practitioner or nurse practitioner can help you decide whether a therapeutic vaping product is clinically appropriate.
Nicotine strength can be confusing. A label may use milligrams per millilitre, a percentage, or simply words such as “low” and “strong”. The same number can also feel very different depending on the device, the way it is used and how frequently a person inhales. That makes the question “What nicotine strength should I use?” more complicated than choosing a number from a chart.
This 2026 Australian guide explains how to read nicotine strength labels, what the current legal access rules mean, why cigarette-count conversion tables are unreliable, and which warning signs should prompt you to stop and seek advice.
Quick Answer: Nicotine Strength in Australia
- Nicotine concentration is usually shown as mg/mL or as a percentage.
- To convert a percentage to mg/mL, multiply it by 10. For example, 1% equals 10 mg/mL and 2% equals 20 mg/mL.
- For adults aged 18 and over, therapeutic vapes containing 20 mg/mL or less may be supplied without a prescription by a participating pharmacy when the pharmacist considers supply clinically appropriate and state or territory law allows it.
- A prescription is required for nicotine concentrations above 20 mg/mL. Other circumstances, including age, local law and complex medical needs, can also require a prescription.
- Therapeutic vapes are only lawfully sold through participating pharmacies. Personal purchases from overseas websites are prohibited.
- There is no universally correct strength based only on the number of cigarettes previously smoked. Device design, inhalation pattern and individual dependence all affect nicotine delivery.
How Nicotine Strength Labels Work
Milligrams per millilitre (mg/mL)
In Australia, nicotine concentration is commonly expressed in milligrams of nicotine per millilitre of liquid. A label showing 20 mg/mL means that each millilitre of liquid contains 20 milligrams of nicotine. It does not mean that every puff delivers 20 milligrams.
The amount absorbed from a puff depends on many variables, including device power, aerosol output, puff duration, inhalation depth and how often the device is used. The concentration on the label describes the liquid, not the exact dose entering the bloodstream.
Percentage labels
Some labels use percentages. The basic conversion is straightforward:
| Percentage | Equivalent concentration | Calculation |
|---|---|---|
| 0.5% | 5 mg/mL | 0.5 × 10 |
| 1% | 10 mg/mL | 1 × 10 |
| 1.5% | 15 mg/mL | 1.5 × 10 |
| 2% | 20 mg/mL | 2 × 10 |
A percentage should not be confused with the total nicotine in the whole container. Container volume also matters. For example, two products can have the same concentration while holding different total amounts of liquid.
Total nicotine is not the same as absorbed nicotine
Multiplying concentration by liquid volume gives the total nicotine contained in the liquid. It still does not tell you how much a person will absorb. Some liquid remains unused, some aerosol is exhaled, and delivery efficiency varies between devices and users.
This distinction matters because marketing terms such as “puff count” do not provide a reliable nicotine dose. Puff counts are estimates based on machine testing or assumed puff duration. A longer or deeper puff can use more liquid than the estimate assumes.
Why Cigarettes per Day Cannot Determine an Exact Strength
Online charts often claim that a particular number of cigarettes per day corresponds to one exact vape concentration. These charts are easy to understand but medically imprecise. Two people who smoke the same number of cigarettes may have very different nicotine dependence because they smoke different brands, inhale differently, smoke at different times of day or use part rather than all of each cigarette.
Nicotine delivery from a vaping device is also not fixed. Important variables include:
- Device output: A device producing more aerosol can deliver more nicotine from the same liquid concentration.
- Puff duration: Longer puffs generally consume more liquid.
- Frequency: Repeated use over a short period can increase exposure even when the concentration appears moderate.
- Inhalation technique: Mouth-to-lung and direct-to-lung use can produce different exposure patterns.
- Nicotine formulation: Formulation and product design can influence how a product feels and how it is used.
- Individual factors: Dependence, tolerance, medicines, pregnancy and health conditions can change what advice is appropriate.
For these reasons, an online article should not prescribe a concentration. A pharmacist or prescriber can consider the whole pattern of nicotine use, discuss registered first-line treatments and provide advice on dose and frequency.
Australia’s Legal Access Rules in 2026
Australia regulates vapes as therapeutic goods when they are supplied for smoking cessation or the management of nicotine dependence. The current framework has two lawful access pathways.
Pharmacist model
An adult aged 18 or over may be able to obtain a therapeutic vape containing no more than 20 mg/mL of nicotine from a participating pharmacy without a prescription. This is not an ordinary retail transaction. The pharmacist must determine that supply is clinically appropriate, confirm age and identity, obtain informed consent, discuss registered alternatives, provide advice and follow applicable state or territory rules.
Supply under this model is limited to no more than one month’s supply in one month. Pharmacists are not required to stock or supply therapeutic vapes.
Prescription model
A prescription from a medical or nurse practitioner is required when the nicotine concentration is above 20 mg/mL. A prescription may also be required because of state or territory legislation, because the patient is under 18, or because additional clinical supervision is needed.
Products above 20 mg/mL cannot be supplied without a prescription in any circumstances. A prescription does not make overseas personal purchases lawful; the TGA states that personal importation of vapes from overseas retailers or websites is prohibited.
Where therapeutic vapes can be supplied
Participating pharmacies are the lawful retail channel. Tobacconists, convenience stores, ordinary vape shops and other retailers cannot legally sell vapes, whether or not the product claims to contain nicotine. Disposable single-use vapes and non-therapeutic vapes are prohibited from commercial supply.
Lawful therapeutic products must comply with Australian standards, including restrictions on ingredients, flavours, packaging and labelling. The permitted flavour categories are restricted to mint, menthol and tobacco.
What to Discuss with a Pharmacist or Prescriber
A useful consultation is broader than asking for a particular number on a label. Be ready to describe:
- whether you currently smoke, vape or use both;
- how soon after waking you use nicotine;
- how frequently you use nicotine throughout the day;
- previous quit attempts and which treatments you have tried;
- any nausea, dizziness, headaches, coughing or breathing symptoms;
- medicines and relevant medical conditions;
- whether your goal is to stop smoking, stop vaping or reduce nicotine dependence.
The TGA describes therapeutic vapes as unapproved goods: they are not included in the Australian Register of Therapeutic Goods and have not been evaluated by the TGA for quality, safety and efficacy in the same way as registered medicines. They are not considered first-line treatment. A health professional should explain registered options such as nicotine patches, gums, lozenges, sprays and prescription medicines where appropriate.
Signs of Excessive Nicotine Exposure
Using a concentration that is too high for the device or repeatedly vaping over a short period can cause excessive nicotine exposure. Warning signs can include:
- nausea or vomiting;
- headache or dizziness;
- sweating, shakiness or unusual weakness;
- rapid heartbeat or feeling unwell after use;
- breathing difficulty;
- confusion or seizures in severe cases.
Stop using the product if symptoms occur. Seek urgent medical attention for serious symptoms or suspected poisoning. In Australia, call the Poisons Information Centre on 13 11 26 for advice. Call emergency services on 000 for severe breathing difficulty, collapse, seizures or another immediate emergency.
Liquid nicotine can be absorbed through the skin and is especially dangerous to children. If liquid contacts skin, rinse it under running water. If it enters the eyes, flush immediately with running water and seek professional advice. Keep all nicotine products locked away from children and pets.
What If Nicotine Feels Insufficient?
Persistent cravings, irritability, difficulty concentrating and repeated return to cigarettes can indicate that nicotine dependence is not being adequately managed. However, increasing concentration without advice is not always the safest response. Device malfunction, inconsistent use, dual use, withdrawal, stress and behavioural triggers can produce similar experiences.
Rather than moving directly to a stronger product, discuss the pattern with a pharmacist, GP or Quitline counsellor. They can help distinguish withdrawal from other problems and consider whether a registered nicotine replacement therapy, behavioural support or a different treatment plan would be more appropriate.
Continuing to smoke and vape at the same time may prolong nicotine dependence and does not remove exposure to cigarette smoke. If smoking cessation is the goal, ask for a plan that addresses both nicotine withdrawal and the situations that trigger smoking.
Reducing Nicotine Dependence Safely
There is no single reduction schedule that suits everyone. A practical plan may involve reducing concentration, reducing frequency, increasing the time between uses or moving to a registered nicotine replacement product. Changing several variables at once can make it difficult to understand what is causing cravings or side effects.
A structured approach can include:
- Record your baseline. Note when and why you use nicotine for several days.
- Choose one measurable change. For example, delay the first use of the day or remove one routine vaping period.
- Monitor withdrawal and side effects. Record cravings, mood, sleep and any physical symptoms.
- Review with support. A pharmacist, GP or Quitline counsellor can help adjust the plan.
- Prepare for triggers. Plan alternatives for stress, alcohol, driving and social situations.
Temporary withdrawal symptoms do not mean a quit attempt has failed. Support, planning and repeated attempts are normal parts of overcoming nicotine dependence.
Common Nicotine Strength Myths
“A higher number always works better”
No. Higher concentration can increase adverse effects and requires a prescription above 20 mg/mL. Appropriate treatment depends on clinical circumstances, product design and how it is used.
“A percentage tells me the dose in every puff”
No. The percentage describes liquid concentration. It does not account for device output, puff duration or frequency.
“Nicotine-free labels are always accurate”
No. The Australian Department of Health warns that illegal products may contain nicotine even when labelled nicotine-free. Products outside the lawful pharmacy pathway may not meet Australian requirements.
“A prescription lets me order from an overseas website”
No. Personal importation of vaping products from overseas retailers and websites is prohibited, including when a person has a prescription.
“Therapeutic vapes are approved medicines”
No. The TGA states that currently available therapeutic vapes are unapproved goods and are not first-line smoking cessation treatments. Lawful access does not mean a product is risk-free or TGA-approved.
Frequently Asked Questions
Is 2% nicotine the same as 20 mg/mL?
Yes. Multiplying the percentage by 10 gives the concentration in mg/mL, so 2% equals 20 mg/mL.
Can an adult buy 20 mg/mL without a prescription?
Potentially, but only from a participating pharmacy, only where state or territory law allows, and only when the pharmacist considers it clinically appropriate after a consultation. Supply is not automatic.
Do concentrations above 20 mg/mL require a prescription?
Yes. The TGA states that therapeutic vapes containing more than 20 mg/mL cannot be supplied without a prescription in any circumstances.
Can disposable vapes be sold legally in Australia?
Disposable single-use vapes cannot be lawfully sold as ordinary retail products. The legal framework preserves access to compliant therapeutic products through participating pharmacies, not commercial disposable-vape retailing.
Where can I get help to quit smoking or vaping?
Speak with a pharmacist, GP or nurse practitioner. Quitline provides confidential support on 13 7848, and free tools are available at quit.org.au.
Key Takeaways
- Read nicotine strength as a concentration, not as an exact dose per puff.
- Convert percentage to mg/mL by multiplying by 10.
- Do not rely on cigarette-count charts to self-prescribe a concentration.
- In Australia, lawful therapeutic supply occurs through participating pharmacies.
- Adults may be able to access products at or below 20 mg/mL without a prescription after a pharmacist consultation; products above 20 mg/mL require a prescription.
- Stop use and seek advice if symptoms of excessive nicotine exposure occur.
- Professional and Quitline support can make nicotine reduction more manageable.
Sources
- Therapeutic Goods Administration — Vapes: information for individuals and patients
- Therapeutic Goods Administration — Changes to the regulation of vapes
- Australian Government Department of Health and Aged Care — About vaping and e-cigarettes
- Australian Government Department of Health and Aged Care — How to quit smoking and vaping
- Quit — Information and support for quitting smoking and vaping
