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Biotene Oral Balance Saliva Replacement Gel - 50g

Biotene Oral Balance Saliva Replacement Gel - 50g

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  • ✔️ Relieves dry mouth discomfort quickly with each application
  • ✔️ Long-lasting gel formula coats and moisturises oral tissues
  • ✔️ Contains xylitol to help protect teeth from decay
  • ✔️ Suitable for dry mouth caused by medication or radiotherapy
  • ✔️ Ideal for overnight use when saliva production naturally drops

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What Is Biotene Oral Balance Dry Mouth Gel?

 

If your mouth feels persistently dry, sticky, or uncomfortable, you are not alone. Dry mouth — known medically as xerostomia — affects a significant number of people in the UK, often as a side effect of medication, radiotherapy to the head or neck, or conditions such as Sjögren's syndrome. Dry mouth gel products like Biotene Oral Balance are specifically designed to provide lasting lubrication and comfort when your salivary glands are not producing enough natural saliva. You can explore our full range of oral health products to find the right solution for your needs.

Biotene Oral Balance Saliva Replacement Gel comes in a convenient 50g tube and is available over the counter without a prescription. It is a well-established product used by patients managing chronic dry mouth, and it is suitable for everyday use. At just £8.19, it offers accessible relief for a condition that can significantly affect eating, speaking, and sleeping.

 

How Does Biotene Oral Balance Gel Work?

 

The gel works by replacing some of the functions of natural saliva — primarily lubrication and moisture retention. It does not stimulate your salivary glands to produce more saliva; instead, it coats the oral mucosa with a protective, moisturising film that reduces friction and discomfort.

  • Hydroxyethylcellulose and hypromellose act as film-forming agents, creating a thin, adherent layer over oral tissues
  • Glycerin functions as a humectant, drawing moisture to the surface of the mouth and helping it stay there
  • Xylitol provides a mild sweetness and may help reduce the risk of dental caries associated with dry mouth
  • The gel's viscosity closely mimics the consistency of natural saliva, making it feel comfortable and natural in the mouth

 

Who Should Use Biotene Oral Balance Gel?

 

This product is suitable for anyone experiencing dry mouth symptoms, regardless of the underlying cause. It is particularly useful for people whose dry mouth is ongoing rather than occasional.

  • Adults taking medications known to cause dry mouth, such as antidepressants, antihistamines, or diuretics
  • Patients undergoing or recovering from radiotherapy to the head or neck
  • People diagnosed with Sjögren's syndrome or other autoimmune conditions affecting salivary glands
  • Older adults who commonly experience reduced saliva production as part of ageing

It is not recommended for children under 12 without specific medical advice. If you are pregnant or breastfeeding, speak to your pharmacist or GP before use.

 

How Does Biotene Oral Balance Compare to Other Saliva Substitutes?

 

Feature Biotene Oral Balance Gel 50g AS Saliva Orthana Spray
Form Gel (tube) Spray (bottle)
Duration of effect Longer-lasting due to gel viscosity Shorter, more frequent application needed
Ease of use at night Ideal — applied directly before sleep Less convenient for overnight use
Contains xylitol Yes No

 

Is Biotene Oral Balance Gel Safe to Use Long-Term?

 

Yes — Biotene Oral Balance dry mouth gel is considered safe for long-term, regular use. Its ingredients are non-toxic and do not interact with common medications in any clinically significant way. Because dry mouth is frequently a chronic condition, many patients use this gel daily for months or years without issue. That said, if your symptoms are new, worsening, or unexplained, it is always worth speaking to your GP or dentist to rule out an underlying cause. You might also find it helpful to browse our dental products collection for complementary oral care items.

Store the gel below 25°C, away from direct sunlight, and keep it out of reach of children. Do not use after the expiry date printed on the tube.

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.

Biotene Oral Balance Saliva Replacement Gel 50g specifications
Treatment category Dry mouth (xerostomia) relief
Mechanism of action Saliva replacement via film-forming humectants
Effective for Dry mouth caused by medication, radiotherapy, Sjögren's syndrome, ageing
Suitable for Adults and children over 12
Active ingredients Hydroxyethylcellulose, hypromellose, glycerin, xylitol
Pack size 50g tube
UK classification General Sale (GSL)
Drug class Saliva substitute / oral lubricant
Preparation Gel
Route of administration Topical oral application

Specifications of Biotene Oral Balance Saliva Replacement Gel 50g

 

What Is Biotene Oral Balance Gel and What Is It Used For?

 

Biotene Oral Balance Saliva Replacement Gel is an over-the-counter oral lubricant used to relieve the symptoms of dry mouth (xerostomia). It is not a treatment for the underlying cause of dry mouth — rather, it provides symptomatic relief by replacing some of the lubricating and moisturising functions of natural saliva. The NHS recognises dry mouth as a common condition that can significantly affect quality of life, including difficulty chewing, swallowing, speaking, and sleeping.

The gel is applied directly inside the mouth and is suitable for adults and young people over 12. It is particularly useful for those whose dry mouth is persistent or chronic, such as patients on long-term medication or those with autoimmune conditions affecting salivary glands.

 

What Do You Need to Know Before Using Biotene Oral Balance Gel?

 

Before using this product, consider the following contraindications and precautions:

  • Do not use if you are allergic to any of the listed ingredients, including hydroxyethylcellulose, hypromellose, glycerin, or xylitol
  • Not recommended for children under 12 without medical supervision
  • If you are pregnant or breastfeeding, consult your pharmacist or GP before use
  • If your dry mouth is a new or unexplained symptom, seek medical advice to identify the cause before relying solely on symptomatic treatment
  • Do not use as a substitute for dental hygiene — continue brushing and flossing regularly

Regarding drug interactions:

  • No clinically significant drug interactions have been reported for Biotene Oral Balance gel
  • It does not affect the absorption of oral medications when used as directed
  • If you are using other oral rinses or gels, allow a few minutes between applications

 

How Should You Use Biotene Oral Balance Gel?

 

Using the gel correctly ensures you get the most benefit from each application. It is straightforward to use and requires no special preparation.

  1. Squeeze a small, pea-sized amount of gel onto your fingertip or directly onto your tongue
  2. Spread the gel around the inside of your mouth using your tongue, covering the cheeks, gums, and palate
  3. Do not rinse your mouth with water immediately after application — allow the gel to remain in contact with oral tissues
  4. Reapply as often as needed throughout the day, particularly before meals, before bed, and upon waking
  5. Replace the cap securely after each use
Indication Age Group Dose Frequency
Dry mouth relief Adults and children over 12 Pea-sized amount As often as needed
Overnight dry mouth Adults Pea-sized amount Apply immediately before sleep

 

What Are the Possible Side Effects of Biotene Oral Balance Gel?

 

Biotene Oral Balance is generally very well tolerated. Serious side effects are rare. However, as with any product applied to oral tissues, some people may notice mild reactions.

Common side effects:

  • Temporary altered or slightly sweet taste in the mouth
  • Mild sensation of stickiness immediately after application

Less common side effects:

  • Mild oral irritation or tingling, particularly in people with sensitive oral mucosa
  • Nausea if a large amount is accidentally swallowed — though the ingredients are non-toxic in small quantities

If you experience any persistent irritation, swelling, or allergic reaction (such as rash, difficulty breathing, or swelling of the face), stop use immediately and seek medical attention. You can also find related products in our ear, nose and throat collection if you are managing related symptoms.

 

How Should You Store Biotene Oral Balance Gel?

 

Correct storage helps maintain the product's effectiveness and safety throughout its shelf life.

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

If you are managing multiple oral health products, our dental products range includes a variety of complementary items to support your oral hygiene routine alongside saliva replacement therapy.

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 Biotene Oral Balance Saliva Replacement Gel online in the UK?

You can buy Biotene Oral Balance Saliva Replacement Gel 50g directly from Cured Pharmacy, a GPhC-registered UK online pharmacy, for £8.19. It is available without a prescription and can be ordered for home delivery. No consultation is required for this over-the-counter product.

How does Biotene Oral Balance gel work in the mouth?

Biotene Oral Balance gel works by coating the oral mucosa with a moisturising, film-forming layer that mimics the lubricating properties of natural saliva. Ingredients such as hydroxyethylcellulose and glycerin help retain moisture on the surface of oral tissues. It does not stimulate saliva production — it replaces the lubricating function directly.

How do I use Biotene Oral Balance gel step by step?

Squeeze a small, pea-sized amount onto your tongue and spread it around the inside of your mouth. Do not rinse with water afterwards — allow the gel to remain in contact with your oral tissues for maximum benefit. Reapply as often as needed throughout the day.

How often should I apply Biotene Oral Balance dry mouth gel?

You can apply the dry mouth gel as frequently as needed — there is no strict maximum number of daily applications. Most people find it most helpful before bed, upon waking, and before meals. Listen to your body and apply whenever dryness becomes uncomfortable.

Are there any side effects of using Biotene Oral Balance gel?

Biotene Oral Balance is very well tolerated by most people. Occasionally, a mild temporary change in taste or a slight tingling sensation may occur. If you notice persistent irritation or any signs of an allergic reaction, stop use and speak to your pharmacist or GP.

Who is Biotene Oral Balance gel suitable for?

It is suitable for adults and young people over 12 who experience dry mouth due to medication side effects, radiotherapy, Sjögren's syndrome, or age-related reduced saliva production. It is not recommended for children under 12 without medical advice. Pregnant or breastfeeding individuals should consult a pharmacist before use.

Can I use Biotene Oral Balance gel if I take regular medication?

No clinically significant drug interactions have been reported with Biotene Oral Balance gel. However, if you are taking oral medications, allow a few minutes between taking your medicine and applying the gel. If you are unsure, speak to your pharmacist for personalised advice.

What are the alternatives to Biotene Oral Balance gel?

Alternatives include other saliva substitutes such as AS Saliva Orthana spray, BioXtra gel, and Glandosane spray. The BNF lists several artificial saliva products that may be prescribed for specific conditions. Your dentist or GP can advise on the most appropriate option based on the cause of your dry mouth. You can also browse our oral health range for related products.

How long can I use Biotene Oral Balance gel for?

Biotene Oral Balance can be used long-term as a symptomatic aid, particularly if your dry mouth is caused by a chronic condition or ongoing medication. There is no recommended maximum duration of use. If symptoms persist, worsen, or are unexplained, consult your GP or dentist to investigate the underlying cause.

Is Biotene Oral Balance gel safe to swallow?

The ingredients in Biotene Oral Balance are non-toxic in the small amounts used during normal application, so accidental swallowing of a small quantity is not considered harmful. However, it is intended for topical oral use only and should not be deliberately swallowed in large amounts. Keep out of reach of children.

Can I use Biotene Oral Balance gel at night?

Yes — applying the gel just before sleep is one of the most effective ways to use it, as saliva production naturally decreases during sleep, making night-time dryness particularly uncomfortable. The gel's viscosity means it stays in contact with oral tissues for longer than a spray or rinse. Many users find this significantly improves their sleep quality.

Does Biotene Oral Balance gel help with dental health?

Dry mouth increases the risk of tooth decay because saliva normally helps neutralise acids and wash away food particles. Biotene Oral Balance contains xylitol, which may help reduce the risk of dental caries. However, it does not replace regular brushing, flossing, and dental check-ups — it is a supportive product, not a dental treatment.

What causes dry mouth and when should I see a doctor?

Dry mouth can be caused by medications (particularly antidepressants, antihistamines, and diuretics), radiotherapy to the head or neck, Sjögren's syndrome, diabetes, or simply dehydration. You should see your GP if dry mouth is new, unexplained, severe, or accompanied by other symptoms. Symptomatic products like this gel are helpful but do not address the root cause.

What are the latest findings on saliva replacement gels for dry mouth?

Clinical evidence supports the use of saliva substitutes containing carboxymethylcellulose or hydroxyethylcellulose for symptomatic relief of xerostomia, particularly in patients undergoing radiotherapy. The NHS and BNF both recognise artificial saliva products as appropriate management for dry mouth. Research continues into mucin-based substitutes that may more closely replicate natural saliva composition.

Can I use Biotene Oral Balance gel with dentures or dental implants?

Yes — Biotene Oral Balance gel is safe to use alongside dentures and dental implants. In fact, dry mouth can make wearing dentures particularly uncomfortable, and the gel may help improve comfort and retention. Apply the gel to your oral tissues as normal; it will not damage denture materials. You can find further dental support products in our dental products collection.

How Should You Use Biotene Oral Balance Saliva Replacement Gel?

Using Biotene Oral Balance correctly is straightforward, but a few simple steps will help you get the most out of each application. The gel is designed to be applied directly inside the mouth and left in place — do not rinse it away with water, as this reduces its effectiveness.

You can apply the gel as often as you need to throughout the day. There is no fixed maximum number of applications — use it whenever your mouth feels dry or uncomfortable.

What Is the Correct Dose of Biotene Oral Balance Gel?

There is no single fixed dose for saliva replacement gels — the amount and frequency of use depends on the severity of your dry mouth and your individual response to the product. The table below provides general guidance.

When Is the Best Time to Use Biotene Oral Balance Gel?

The gel can be used at any time of day, but certain moments tend to be particularly beneficial. Applying it just before bed is especially helpful, as saliva production naturally decreases during sleep, making night-time one of the most uncomfortable periods for people with dry mouth.

Many people also find it useful first thing in the morning upon waking, before meals to ease chewing and swallowing, and after drinking hot beverages. There is no need to time it around food or other oral hygiene products, though it is sensible to brush your teeth before applying the gel at night.

How Long Can You Use Biotene Oral Balance Gel For?

Biotene Oral Balance can be used for as long as your dry mouth symptoms persist. Because dry mouth is frequently a chronic condition — particularly when caused by long-term medication or an autoimmune condition — many people use this gel daily for extended periods without any safety concerns.

If your symptoms are new or have changed, it is worth speaking to your GP or dentist to identify the underlying cause. Symptomatic relief is valuable, but addressing the root cause where possible is always the preferred approach.

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

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What Are the Most Common Side Effects of Biotene Oral Balance Gel?

Biotene Oral Balance is very well tolerated by the vast majority of people who use it. Because its ingredients are gentle humectants and film-forming agents rather than pharmacologically active drugs, the side effect profile is minimal. That said, any product applied to oral tissues can occasionally cause a reaction.

  • Temporary altered or slightly sweet taste in the mouth immediately after application
  • Mild sensation of stickiness or thickness in the mouth, particularly when first using the product
  • Slight increase in saliva-like secretions as the mouth responds to the moisture

What Are the Less Common Side Effects of Biotene Oral Balance Gel?

Less commonly, some individuals — particularly those with sensitive oral mucosa or a history of oral conditions — may notice the following effects. These are not typical but are worth being aware of.

  • Mild tingling or irritation of the gums, tongue, or inner cheeks
  • Mild nausea if a larger-than-intended amount is accidentally swallowed
  • Temporary worsening of taste perception in people with pre-existing taste disturbances

These effects are generally short-lived and resolve on their own. If they persist beyond a day or two, stop using the product and speak to your pharmacist.

What Are the Serious Side Effects of Biotene Oral Balance Gel?

Serious side effects are rare with this product. However, allergic reactions — though uncommon — can occur with any topically applied product. You should seek immediate medical attention if you experience any of the following after using Biotene Oral Balance gel.

  • Swelling of the lips, tongue, throat, or face
  • Difficulty breathing or swallowing
  • Severe rash, hives, or widespread skin reaction
  • Sudden worsening of oral pain or inflammation

What Should You Do If You Experience Side Effects?

For mild side effects such as taste changes or minor irritation, simply reduce the amount of gel you apply and see if symptoms improve. Most people find that their mouth adjusts to the product within a few days of regular use.

If you experience a more significant reaction, stop using the gel immediately and contact your pharmacist or GP. For signs of a serious allergic reaction, call 999 or go to your nearest A&E department without delay. Always bring the product packaging with you so healthcare professionals can identify the ingredients.

Can Biotene Oral Balance Gel Interact With Other Medicines?

No clinically significant interactions between Biotene Oral Balance gel and other medicines have been reported. The product is applied topically inside the mouth and is not absorbed systemically in meaningful amounts. If you are taking oral medications, it is sensible to allow a few minutes between swallowing your medicine and applying the gel, simply to avoid any physical interference with tablet dissolution. If you have specific concerns about interactions, your pharmacist is the best person to advise you.

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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