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Ultradex Oral Rinse Sensitive 250ml

Ultradex Oral Rinse Sensitive 250ml

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  • ✔️ Neutralises bad breath at source using stabilised chlorine dioxide
  • ✔️ Alcohol-free formula gentle on sensitive teeth and gums
  • ✔️ Targets volatile sulphur compounds — not just masks odour
  • ✔️ Suitable for daily use in adults and children aged 12+
  • ✔️ Zinc ions reduce oral bacteria for lasting freshness

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Is Ultradex Oral Rinse Sensitive the Right Sensitive Mouthwash for Bad Breath?

 

Bad breath — clinically known as halitosis — affects a significant proportion of the UK population at some point in their lives. For many people, the problem isn't just embarrassing; it's persistent, and ordinary mouthwashes simply don't cut it. If you've tried alcohol-based rinses only to find they leave your mouth dry or irritated, sensitive mouthwash for bad breath like Ultradex Oral Rinse Sensitive 250ml could be exactly what you need. It's gentle, alcohol-free, and designed to tackle the root cause of bad breath rather than just covering it up. You can find it alongside a wide range of other products in our oral health collection.

Ultradex Oral Rinse Sensitive is an over-the-counter product available without a prescription. It's suitable for adults and children aged 12 and over who want a daily mouthwash that's kind to sensitive teeth and gums while still delivering meaningful results against halitosis.

 

How Does Ultradex Oral Rinse Sensitive Work Against Bad Breath?

 

The science behind Ultradex is straightforward but effective. Most cases of bad breath originate from volatile sulphur compounds (VSCs) — odorous gases produced when bacteria in the mouth break down proteins. Standard mouthwashes often rely on alcohol or strong flavourings to mask these smells temporarily. Ultradex takes a different approach.

  • Stabilised chlorine dioxide actively oxidises and neutralises VSCs at a molecular level, eliminating the odour rather than disguising it.
  • Zinc ions work alongside chlorine dioxide to inhibit bacterial activity in the oral cavity, reducing the ongoing production of VSCs.
  • The alcohol-free base means the formula doesn't dry out oral tissues — important because a dry mouth can actually worsen bad breath.
  • The sensitive formulation avoids harsh excipients that can irritate already-reactive gum tissue or enamel.

This dual-action approach — neutralising existing VSCs while reducing bacterial load — is what sets Ultradex apart from many standard rinses on the market.

 

Who Should Use Ultradex Oral Rinse Sensitive?

 

This rinse is designed for anyone who experiences persistent bad breath and wants a gentle daily solution. It's particularly well-suited to people who find conventional mouthwashes too harsh. That said, it's worth knowing who benefits most.

  • Adults and teenagers aged 12 and over with chronic halitosis
  • People with sensitive teeth or gums who react to alcohol-based rinses
  • Individuals with dry mouth (xerostomia), where alcohol-free formulas are strongly preferred
  • Those undergoing dental treatment who need a gentle adjunct to their oral hygiene routine

It is not recommended for children under 12. If you're pregnant or breastfeeding, speak to your pharmacist or midwife before use, as a precaution.

 

How Does Ultradex Oral Rinse Sensitive Compare to Other Mouthwashes?

 

Feature Ultradex Oral Rinse Sensitive Standard Alcohol-Based Mouthwash
Alcohol content Alcohol-free Often 14–26% alcohol
Mechanism Neutralises VSCs with chlorine dioxide + zinc Antimicrobial; may mask odour
Suitable for sensitive mouths Yes — specifically formulated Not always; can cause irritation
Dry mouth risk Low — alcohol-free formula Higher — alcohol can dry oral tissues

 

Is Ultradex Oral Rinse Sensitive Safe to Use Daily?

 

Yes — Ultradex Oral Rinse Sensitive is designed for twice-daily use as part of your regular oral hygiene routine. Because it's alcohol-free, it doesn't carry the same risk of oral dryness associated with some other rinses. Store it below 25°C, away from direct sunlight, and keep it out of reach of children. If you're managing multiple aspects of your health alongside oral care, our dental products collection has a range of complementary items worth exploring.

This product is a medicine. Speak to your doctor or pharmacist before using if you have an underlying medical condition or are taking other medicines.

Ultradex Oral Rinse Sensitive 250ml specifications
Treatment category Oral hygiene / Halitosis
Mechanism of action Neutralises volatile sulphur compounds via stabilised chlorine dioxide and zinc
Effective against Bad breath (halitosis), oral bacteria
Suitable for Adults and children aged 12 and over
Active ingredient Stabilised chlorine dioxide, zinc
Pack size 250ml
UK classification General Sale List (GSL)
Preparation Oral rinse (liquid)
Route of administration Oral (rinse and spit)

Specifications of Ultradex Oral Rinse Sensitive 250ml

 

What Is Ultradex Oral Rinse Sensitive and What Is It Used For?

 

Ultradex Oral Rinse Sensitive 250ml is an alcohol-free oral rinse used to treat and prevent bad breath (halitosis). It works by chemically neutralising the volatile sulphur compounds that bacteria in the mouth produce — the primary cause of persistent oral malodour. Unlike many rinses that simply flavour the breath temporarily, Ultradex targets the source. It is suitable for daily use in adults and young people aged 12 and over, particularly those with sensitive teeth, gums, or dry mouth conditions. The NHS notes that good oral hygiene — including regular use of mouthwash — plays an important role in managing bad breath.

 

What Do You Need to Know Before Using Ultradex Oral Rinse Sensitive?

 

Before using this rinse, read the following carefully. While Ultradex Oral Rinse Sensitive is generally well tolerated, there are some important considerations.

Do not use this product if:

  • You are under 12 years of age
  • You are allergic to any of the ingredients, including stabilised chlorine dioxide or zinc compounds
  • You have been advised by your dentist or doctor to avoid specific oral rinse ingredients

Take care and speak to your pharmacist or GP if:

  • You are pregnant or breastfeeding
  • You have open sores, ulcers, or wounds in your mouth
  • You have a known sensitivity to chlorine dioxide-based products
  • You are currently undergoing dental treatment or using other medicated oral rinses

Known drug interactions:

  • No clinically significant drug interactions are currently documented for topical oral use of stabilised chlorine dioxide at the concentrations found in this product
  • If you use other medicated mouthwashes (e.g. chlorhexidine-based rinses), space them apart and consult your dentist about combining products

 

How Should You Use Ultradex Oral Rinse Sensitive?

 

Using Ultradex correctly makes a real difference to how well it works. Follow these steps each time you use it.

  1. Measure 10ml of the rinse using the cap or a measuring cup.
  2. Take the liquid into your mouth and swirl it around for approximately 60 seconds, ensuring it reaches all areas including between teeth and along the gum line.
  3. Spit the rinse out completely — do not swallow.
  4. Do not eat, drink, or rinse your mouth with water for at least 30 minutes after use to allow the active ingredients to continue working.
  5. Use twice daily — ideally morning and evening after brushing your teeth.
Indication Age Group Dose Frequency
Bad breath (halitosis) Adults and children 12+ 10ml Twice daily
Not recommended Under 12 years

If you're looking to support your overall oral health routine, our oral health collection includes a range of complementary products including toothpastes, floss, and dental accessories.

 

What Are the Possible Side Effects of Ultradex Oral Rinse Sensitive?

 

Like all oral care products, Ultradex Oral Rinse Sensitive may cause side effects in some people, though not everyone experiences them. The sensitive formulation is designed to minimise irritation, but it's worth knowing what to look out for.

Common side effects:

  • Mild tingling or sensation in the mouth during use
  • Temporary altered taste immediately after rinsing

Less common side effects:

  • Mild oral mucosal irritation, particularly if used more frequently than recommended
  • Temporary tooth or gum sensitivity
  • Dry mouth sensation (rare, given the alcohol-free formula)

If you experience a rash, swelling of the mouth or throat, or difficulty breathing, stop use immediately and seek urgent medical attention — these could indicate a rare allergic reaction. The NHS advises that any persistent oral symptoms should be reviewed by a dentist or GP.

 

How Should You Store Ultradex Oral Rinse Sensitive?

 

Correct storage helps maintain the product's effectiveness throughout its shelf life. If you're also managing other health products at home — from vitamins and supplements to topical treatments — good storage habits apply across the board.

  • Store below 25°C in a cool, dry place
  • Keep away from direct sunlight and heat sources
  • Keep the cap tightly closed when not in use
  • Keep out of reach and sight of children
  • Do not use after the expiry date printed on the bottle
  • Do not freeze
  • Do not transfer to another container

Written and reviewed by our qualified team

Your safety and success are our highest priorities. Our medical team rigorously evaluates every product and piece of advice we provide, ensuring you receive only the most effective, science-backed solutions available.

Frequently Asked Questions

Where can I buy Ultradex Oral Rinse Sensitive 250ml online in the UK?

You can buy Ultradex Oral Rinse Sensitive 250ml directly from Cured Pharmacy, a GPhC-registered UK online pharmacy. It's available without a prescription as a General Sale List (GSL) product. Simply add it to your basket and it will be dispatched to your door.

How does Ultradex Oral Rinse Sensitive work in the mouth?

Ultradex Oral Rinse Sensitive uses stabilised chlorine dioxide to oxidise and neutralise volatile sulphur compounds (VSCs) — the gases produced by oral bacteria that cause bad breath. Zinc ions work alongside this to inhibit bacterial activity, reducing ongoing VSC production. Together, they eliminate the source of bad breath rather than simply masking it.

How do I use Ultradex Oral Rinse Sensitive step by step?

Measure 10ml using the bottle cap, swirl it around your mouth for 60 seconds making sure it reaches all areas, then spit it out — do not swallow. Avoid eating, drinking, or rinsing with water for at least 30 minutes afterwards. Use twice daily, ideally after brushing morning and evening.

What is the correct dose of Ultradex Oral Rinse Sensitive?

The recommended dose is 10ml per use, twice daily. This applies to adults and young people aged 12 and over. Do not exceed this dose, and do not use it more frequently than recommended unless advised by your dentist or pharmacist.

Is Ultradex Oral Rinse Sensitive alcohol-free?

Yes, Ultradex Oral Rinse Sensitive is completely alcohol-free. This makes it a particularly good choice if you have a dry mouth, sensitive gum tissue, or simply prefer to avoid alcohol in your oral care products. Alcohol-free mouthwashes are generally less likely to cause oral dryness or irritation with regular use.

Can I use Ultradex Oral Rinse Sensitive if I have sensitive teeth and gums?

Yes — the sensitive formulation is specifically designed for people with reactive or sensitive oral tissues. It avoids alcohol and harsh excipients that can aggravate sensitivity. If you experience any unusual irritation after use, stop and speak to your pharmacist or dentist.

What are the side effects of Ultradex Oral Rinse Sensitive?

Side effects are uncommon but can include mild tingling during use, a temporary change in taste, or mild oral irritation if used more frequently than directed. Serious allergic reactions are rare but possible — if you notice swelling, a rash, or difficulty breathing, stop use immediately and seek medical attention.

How do I manage side effects of Ultradex Oral Rinse Sensitive?

Most mild side effects, such as temporary taste changes or a slight tingling sensation, resolve on their own and don't require treatment. If irritation persists, reduce use to once daily and consult your pharmacist. For any signs of an allergic reaction, stop use immediately and seek urgent advice from a healthcare professional.

Who is eligible to use Ultradex Oral Rinse Sensitive?

Ultradex Oral Rinse Sensitive is suitable for adults and young people aged 12 and over. It is not recommended for children under 12. If you are pregnant, breastfeeding, or have an underlying oral health condition, speak to your pharmacist or GP before use. You can browse our full range of dental products to find the most appropriate option for your needs.

What happens if I accidentally swallow Ultradex Oral Rinse Sensitive?

Ultradex Oral Rinse Sensitive is not intended to be swallowed. If a small amount is accidentally ingested, it is unlikely to cause serious harm in adults, but you should drink water and contact NHS 111 or your pharmacist for advice. If a child swallows a significant amount, seek medical attention promptly.

How long can I use Ultradex Oral Rinse Sensitive for?

Ultradex Oral Rinse Sensitive can be used as part of your ongoing daily oral hygiene routine. There is no set maximum duration for use. However, if bad breath persists despite consistent use over several weeks, it's worth visiting your dentist — persistent halitosis can sometimes indicate an underlying dental or medical condition.

What are the alternatives to Ultradex Oral Rinse Sensitive?

Alternatives include chlorhexidine-based mouthwashes (such as Corsodyl), which are effective against bacteria but not specifically formulated for sensitive mouths and are generally recommended for short-term use only. Cetylpyridinium chloride rinses are another option. Ultradex's chlorine dioxide approach is distinct in that it targets VSCs directly rather than relying solely on broad-spectrum antimicrobial action. Explore our oral health collection for a full range of options.

Can I use Ultradex Oral Rinse Sensitive alongside my regular toothpaste?

Yes, Ultradex Oral Rinse Sensitive is designed to complement your regular brushing and flossing routine, not replace it. Use it after brushing for best results. If your toothpaste contains sodium lauryl sulphate (SLS), rinse your mouth with water after brushing before using the Ultradex rinse, as SLS can temporarily reduce the effectiveness of some active ingredients.

Is Ultradex Oral Rinse Sensitive suitable for people with dry mouth?

Yes — because it's alcohol-free, Ultradex Oral Rinse Sensitive is a sensible choice for people with dry mouth (xerostomia). Alcohol-based mouthwashes can worsen dry mouth by further drying oral tissues, which in turn can actually make bad breath worse. The NHS notes that dry mouth is itself a common cause of halitosis, so choosing an alcohol-free rinse is a practical step.

What are the latest findings on chlorine dioxide mouthwashes for bad breath?

Published clinical studies have consistently shown that stabilised chlorine dioxide-based oral rinses are effective at reducing VSC levels and improving breath odour scores compared to placebo. Research published in peer-reviewed dental journals supports their use as a targeted approach to halitosis management. As always, good overall oral hygiene remains the foundation of any treatment strategy for bad breath.

How Should You Use Ultradex Oral Rinse Sensitive?

Using Ultradex Oral Rinse Sensitive correctly is straightforward, but following the steps precisely helps you get the most from each use. The rinse works best when it has enough contact time with all surfaces of the mouth, so don't rush the process.

Always replace the cap securely after use. If you find the taste too strong initially, you can dilute slightly with a small amount of water, though using it undiluted is recommended for full effectiveness.

What Is the Correct Dose of Ultradex Oral Rinse Sensitive?

The standard dose is 10ml per use, twice daily. Do not use more than this amount per session, and do not use it more than twice a day unless specifically directed by your dentist or pharmacist. Overuse does not improve results and may increase the risk of mild oral irritation.

When Is the Best Time to Use Ultradex Oral Rinse Sensitive?

The most effective times to use Ultradex Oral Rinse Sensitive are in the morning and evening, after brushing your teeth. Using it after brushing removes the bulk of food debris and plaque first, allowing the active ingredients to work directly on the remaining bacteria and VSCs. Morning use helps neutralise overnight bacterial activity, while evening use reduces the bacterial load before sleep — a period when saliva flow decreases and bacteria can thrive.

Avoid using the rinse immediately before eating or drinking, as this reduces its contact time and effectiveness. If you use other medicated oral products, space them apart and ask your pharmacist for guidance on timing.

How Long Can You Use Ultradex Oral Rinse Sensitive For?

Ultradex Oral Rinse Sensitive is suitable for long-term daily use as part of your regular oral hygiene routine. There is no recommended maximum duration. Many people use it continuously as a preventive measure against bad breath. However, if you notice no improvement in halitosis after four to six weeks of consistent twice-daily use, it's worth booking an appointment with your dentist. Persistent bad breath can sometimes signal an underlying dental issue — such as gum disease or tooth decay — or occasionally a systemic health condition that warrants further investigation.

Do not exceed the recommended dose. If in doubt, speak to your pharmacist.

What Are the Most Common Side Effects of Ultradex Oral Rinse Sensitive?

Ultradex Oral Rinse Sensitive is generally very well tolerated, particularly because of its alcohol-free formulation. That said, as with any oral care product, some people may notice mild effects when they first start using it. These are usually short-lived and not a cause for concern.

  • Mild tingling or cooling sensation in the mouth during rinsing
  • Temporary altered or metallic taste immediately after use
  • Slight sensation of dryness in the mouth (uncommon given the alcohol-free formula)

What Are the Less Common Side Effects of Ultradex Oral Rinse Sensitive?

Less commonly, some users may experience mild irritation of the oral mucosa — the soft tissue lining the inside of the mouth. This is more likely if the rinse is used more frequently than the recommended twice daily. If you notice any of the following, reduce use to once daily and consult your pharmacist.

  • Mild soreness or sensitivity of the gums
  • Temporary increased tooth sensitivity
  • Mild irritation of the inner cheeks or tongue
  • Slight staining of the tongue (rare; resolves with normal oral hygiene)

What Are the Serious Side Effects of Ultradex Oral Rinse Sensitive?

Serious side effects are rare but possible. Allergic reactions to any ingredient in the formulation — including stabilised chlorine dioxide or zinc compounds — can occur, though they are uncommon. Signs of a serious allergic reaction include swelling of the lips, tongue, or throat, difficulty breathing, a widespread skin rash, or dizziness. If you experience any of these symptoms, stop using the product immediately and call 999 or go to your nearest A&E department. Do not attempt to drive yourself.

What Should You Do If You Experience Side Effects of Ultradex Oral Rinse Sensitive?

For mild side effects such as taste changes or a brief tingling sensation, no action is usually needed — these typically resolve within minutes of spitting out the rinse. If irritation persists beyond a few days of use, stop using the product and speak to your pharmacist or dentist. You can also report suspected side effects to the MHRA via the Yellow Card scheme at yellowcard.mhra.gov.uk. This helps improve safety monitoring for all oral care products in the UK.

Can Ultradex Oral Rinse Sensitive Interact With Other Medicines?

No clinically significant drug interactions have been documented for Ultradex Oral Rinse Sensitive when used as directed. However, if you are using other medicated oral rinses — particularly chlorhexidine-based products — it is advisable to space them apart rather than using them simultaneously, as combining active oral rinse ingredients may reduce the effectiveness of both. Always inform your dentist or pharmacist about all oral care products you are using, especially if you are undergoing dental treatment or taking prescribed medicines that affect the mouth or saliva production.

If you are concerned about any side effects, contact your pharmacist or GP immediately.

Patient Information Leaflet

Important - Before taking any medication, it is always important to read the Patient Information Leaflet (PIL)

Written and reviewed by our qualified team

GPhC Number: 2233073
Tarun Kumar

Reviewed by:

Tarun Kumar

Superintendent/ Clinical Lead

📖 Find out more about our team of medical content authors and how we ensure the accuracy of our content with our content guidelines.

Content last updated: 31 Mar 2025

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