Dandruff is bothersome at the best of times, but the good news is that medicated treatments can help when the cause of dandruff is fungal. You might know you need something stronger than a regular shampoo, but still be unsure which Nizoral product is right for you. With decades of global scalp care expertise, Nizoral offers two ketoconazole shampoo strengths for different levels of dandruff severity.
Nizoral is available in two ketoconazole strengths: 1% and 2%. Both are medicated anti-dandruff treatments designed to target fungal overgrowth on the scalp, but they are suited to different levels of dandruff severity.
This guide explains the difference between Nizoral 1% and Nizoral 2%, when each may be appropriate, how to use them, and when to ask a pharmacist for advice.
Always read the label and follow the directions for use.
What is the main difference between Nizoral 1% and 2%?
The main difference is the concentration of ketoconazole.
Nizoral 1% contains 1% ketoconazole as an active ingredient, and is suitable for mild to moderate dandruff. It is designed to be gentle on the scalp while still delivering targeted antifungal action. It also has a deep conditioning benefit to help leave hair feeling soft and manageable.
Nizoral 2% contains 2% ketoconazole, which is double the concentration of the 1% formulation. It is a higher-strength option for more severe or persistent dandruff symptoms.
Both products are medicated shampoos available without a prescription in Australia.
For a deeper look at how ketoconazole works, read our guide to ketoconazole shampoo in Australia.
Nizoral 1% vs 2% at a glance
| Feature | Nizoral 1% | Nizoral 2% |
| Ketoconazole strength | 1% | 2% |
| Best suited for | Mild to moderate dandruff | More severe or recurring dandruff |
| Key benefit | Treats dandruff while deeply conditioning hair | Higher-strength dandruff treatment |
| How often to use | Twice a week | Twice a week |
| Contact time | Leave on scalp for 3-5 minutes | Leave on scalp for 3-5 minutes |
| Age suitability | Adults and children over 12 | Adults and children over 12 |
| Bottle sizes | 125 mL and 200 mL | 60 mL and 100 mL |
| Prescription required? | No | No |
When to use Nizoral 1%
Nizoral 1% may be suitable if your dandruff is only mild to moderate, as it helps fight dandruff-causing fungi while being gentle on the scalp. Its deep conditioning ingredients also help leave hair feeling soft and manageable.
Nizoral 1% may be a good fit if:
- Your flakes are mild to moderate
- Your scalp feels itchy or irritated but symptoms are not severe
- You want a medicated treatment with a conditioning benefit
- You have colour-treated or chemically processed hair and want a gentler-feeling option
If you’re still trying to work out what is causing your flakes, read our guide to what causes dandruff and how medicated shampoo can help.
When to use Nizoral 2%
Our 2% formulation contains double the concentration of ketoconazole compared with Nizoral 1% and is designed for more severe dandruff symptoms.
It may be more appropriate if your dandruff keeps coming back, or is accompanied by heavier flaking, redness, irritation, or scaling. Nizoral 2% is clinically proven to be effective in approximately 9 out of 10 users with ongoing use.
Nizoral 2% may be a good fit if:
- Your dandruff is severe or keeps coming back
- You have heavier flaking or noticeable scaling
- Your scalp feels itchy, red, or irritated
- You have tried regular anti-dandruff shampoos without enough improvement
- You want a higher-strength ketoconazole treatment
If you are unsure which strength is right for you, speak to a pharmacist.
Does stronger always mean better?
Not necessarily. The right dandruff treatment strength depends on your symptoms.
2% ketoconazole does not necessarily mean faster results than 1% – it means the formulation is designed for more severe symptoms. The aim is not to choose the strongest option by default, but to choose the one that matches what your scalp needs.
How to use Nizoral 1% and 2%
The directions are the same for both Nizoral 1% and Nizoral 2%.
- Use twice weekly
- Apply to wet hair and scalp
- Massage gently across the scalp
- Leave in contact with the scalp for 3-5 minutes
- Rinse thoroughly
- Use in place of your regular shampoo on treatment days
On days you are not using Nizoral, you can wash your hair with your usual shampoo if desired. If using conditioner after Nizoral, apply it to the mid-lengths and ends of the hair rather than directly to the scalp to avoid any interference with the treatment.
Always read the label and follow the directions for use.
How long does it take to see results?
With consistent use as directed, Nizoral has proven results from four washes, though individual results may vary.
Because dandruff is often recurring, ongoing use may be needed to help keep flakes and itching under control. If symptoms do not improve after regular use, or if your scalp becomes painful, inflamed, or increasingly irritated, speak to a pharmacist or GP.
Where can you buy Nizoral 1% and 2% in Australia?
Nizoral 1% and Nizoral 2% are available without a prescription from pharmacies and selected retailers across Australia.
To find Nizoral 1% or 2% near you or online, visit the Where to Buy Nizoral page.
Frequently Asked Questions
What is the difference between Nizoral 1% and 2%?
The difference is the ketoconazole strength. Nizoral 1% contains ketoconazole 1% and is suitable for mild to moderate dandruff, while Nizoral 2% contains ketoconazole 2% and is designed for more severe or recurring dandruff symptoms.
Which Nizoral should I use?
If your dandruff is mild to moderate, Nizoral 1% may be suitable. If your symptoms are more severe, persistent, or include heavier flaking, redness, or irritation, Nizoral 2% may be more appropriate. Ask your pharmacist if you are unsure.
Is Nizoral 2% twice as strong as Nizoral 1%?
Nizoral 2% contains double the concentration of ketoconazole compared with Nizoral 1%. However, the right choice depends on your symptoms, not just strength. Mild to moderate dandruff may not need the higher-strength formulation.
Do Nizoral 1% and 2% have different usage directions?
No. Both are used twice weekly. Apply to wet hair and scalp, lather, leave in contact with the scalp for 3-5 minutes, then rinse thoroughly. Always follow the directions on the label.
Do I need a prescription for Nizoral 1% or 2% in Australia?
No. Both Nizoral 1% and Nizoral 2% are available without a prescription in Australia.
Can I use Nizoral if I have colour-treated or chemically processed hair?
Nizoral 1% may be used on colour-treated and chemically processed hair. If you are concerned about colour, dryness, or texture changes, speak with your hairdresser or pharmacist before use.
Note: This article is for general information only and does not constitute medical advice. If symptoms persist, worsen, or you are unsure which treatment is right for you, speak with a pharmacist or GP.
Always read the label and follow the directions for use.