Frequently Asked Questions

Your Dry Mouth Questions, Answered

Find answers to common questions about dry mouth and the bioXtra product range. From product usage and ingredients to safety information and symptom relief, this FAQ page is designed to help you better understand how bioXtra products can support daily comfort, oral health, and quality of life for those living with dry mouth.

Ingredients

The ingredient list features glucose oxidase. Is this a sugar?

No, glucose oxidase is not a sugar but an enzyme activated by glucose from food and drinks. During this process, your mouth’s glucose levels actually drop, as the glucose is consumed by the enzyme. Glucose oxidase is safe for natural teeth.

Some bioXtra products contain limonene, a common allergen. Can I use those products?

Regarding skin allergy, the presence of limonene does not have much relevance in the oral cavity. If you eat an orange or drink orange juice, the concentration of limonene in the mouth and on the lips is much higher.

However, if you have a known allergy to limonene, avoid using the bioXtra products that contain it (our Ultra Mild Mouthrinse and the Mild Toothpaste). You can safely use our Dry Mouth Gel and Gel Mouthspray.

Always consult a specialists if you have concerns.

Are bioXtra products gluten-free?

bioXtra Dry Mouth Gel and bioXtra Gel Mouthspray contain traces of gluten but are below the threshold of 20 ppm, meaning that the products are considered gluten-free according to the Codex Alimentarius.

Are bioXtra products vegan?

bioXtra products contain milk derivatives (colostrum, lactoferrin, and lactoperoxidase) and an egg-white derivative (lysozyme). If you choose to avoid animal-derived ingredients, bioXtra products are not suitable for you.

I am on a low-salt diet. How much salt (sodium) is present in the bioXtra products?

For the following bioXtra products, of which a small amount can possibly be swallowed, the sodium content is calculated according to the daily dosage:

Mouthspray:  7.2mg
Gel : 6.3mg

Our mouthrinse is intended to be spat out, so the risk of ingesting sodium is negligible.

What is the quantity of potassium within bioXtra Dry Mouth Gel and bioXtra Gel Mouthspray? Would this impact the risk of hyperkalemia?

The potassium concentration in bioXtra products are as follows:

bioXtra Dry Mouth Gel, on a basis of the daily recommended intake of 3gr: 1.3mg per day
bioXtra Dry Mouth Gel Mouthspray, on a basis of the daily recommended intake of 3.8ml: 5mg per day

The recommended daily amount (RDA) of potassium is 3,400mg for adult men and 2,600mg for adult women. Contact your doctor once you know how much you’re likely to ingest per day.

What is the carbohydrate content within bioXtra Dry Mouth Gel Mouthspray and bioXtra Dry Mouth Gel for diabetic patients?

These calculations* are based on a worst case scenario and according to the quantity likely to be ingested per day:

bioXtra Dry Mouth Gel Mouthspray, when used according to instructions and based on 3.8g of spray per day: a maximum of 350mg of carbohydrates per day
bioXtra Dry Mouth Gel, when used according to instructions and based on 3g of gel per day: a maximum of 1,870mg of carbohydrates per day

*This information is provided in good faith and is accurate to the best of our knowledge according to current scientific documentation available to us. However, in case of any doubt of suitability for use for specific disorders, please seek advice from a medical practitioner.

Safety

Do I need a prescription for bioXtra?

No, bioXtra products are available without a prescription.

What does the "medical device" and "MD" symbol mean on the bioXtra products?

The Medical Devices Directive (MDD) has recently been replaced by the new Medical Device Regulation (MDR). bioXtra’s Dry Mouth Gel, Gel Mouthspray, and Ultra Mild Mouthrinse are classified as Class IIa medical devices under the new MDR regulation. The bioXtra range is the first European range of dry mouth products to have successfully passed this transition. A quality management system has been set up to manage production in this product category, and the technical file supports the safety, efficacy, and claims.

With the new MDR regulation, oral care products are either classified as Class IIa, with an annual surveillance audit by a notified body, or the products are classified as cosmetics, in which case they may not be associated with medical claims in any shape or form.

You can recognize an MDR-classified medical device by the “MD” symbol on the box.

Are bioXtra products safe to use if I'm taking medication?

bioXtra products do not influence medications and can still be used.

Are bioXtra products clinically supported?

The efficacy of all bioXtra products has been clinically supported for over 20 years, with several studies justifying their performance and safety.

Why do I have to close the tubes and bottles after opening?

The enzyme system in bioXtra products is activated by oxygen. If you leave the product open, oxygen will penetrate the tube or bottle, decreasing the efficacy of the product.

Are the bioXtra products dermatologically tested?

All bioXtra products have been dermatologically tested and are non-irritant.

Can I use bioXtra products if I have damaged mucosa in my mouth?

bioXtra products have been evaluated as safe if they come into contact with damaged or compromised mucosa. If you experience stinging or any unpleasant sensation, rinse your mouth thoroughly and avoid using the product until the mucosa has fully healed.

Are bioXtra Dry Mouth Gel and bioXtra Gel Mouthspray safe to swallow?

Yes. Biocompatibility studies demonstrate that—at the recommended daily dosage and although they are designed to achieve their purpose in the oral cavity—both products are safe to swallow.

However, please always consider possible allergies and consult the packaging and ingredient list for information. It’s also important to avoid an accumulation of gel in the throat for bed-ridden patients or for those who are unable to swallow easily. When in doubt, always consult a physician.

bioXtra Ultra Mild Mouthrinse and bioXtra Mild Toothpaste are not intended to be swallowed.

bioXtra Gel Mouthspray

Can I use bioXtra Gel Mouthspray during the night?

bioXtra Gel Mouthspray is designed for convenient, portable use throughout the day, but it can also be used at night for mild relief. Avoid drinking and brushing teeth just after applying the spray.

For a longer-lasting comfort while sleeping, bioXtra Oral Gel is recommended.

bioXtra Dry Mouth Oral Gel

How long does bioXtra Oral Gel work?

The dryer the mouth, the longer our gel stays in place. For long-lasting lubrication and comfort, especially at night, apply the gel before going to sleep. Avoid drinking and brushing your teeth just after applying the gel.

Can I use bioXtra Oral Gel under my dentures?

Yes. When you suffer from a lack of saliva, dentures will often not stay in place because there is no adhesion. Improve comfort by applying bioXtra Dry Mouth Gel under your dentures.

What is the best way to apply bioXtra Oral Gel into a patient’s mouth?

When used in a clinical environment, always follow good hygiene practices.

Position the patient in an upright or semi-upright position. Remove or have patient spit out any excess of previously applied gel before each new application. Take extra care when applying to patients who have difficulty in swallowing.

bioXtra Oral Gel can also be used in case of PEG feeding or oxygen therapy.

How do I apply bioXtra Oral Gel?

Wash hands thoroughly before use.
Apply gel with your finger or a clean swab to gums and tongue or under dentures. Use whenever mouth feels dry, especially before bedtime.
Remove or spit out the excess.
Close cap after use.
Repeat when dry mouth symptoms return, without exceeding the recommended daily amount.

bioXtra Mild Toothpaste

Why does bioXtra Mild Toothpaste have a low foaming effect?

bioXtra Mild Toothpaste is SLS-free. SLS (sodium lauryl sulphate) is a detergent that—in some cases—can cause painful spots (aphthous ulcers) in the mouth. In those suffering from dry mouth, these problems occur more frequently due to the lack of natural protective properties normally present in saliva. Using bioXtra Mild Toothpaste may help reduce the onset of aphthous ulcers.

However, “low foaming” does not mean “less cleaning.” bioXtra Mild Toothpaste leaves teeth and gums feeling fresh and healthy.

bioXtra Ultra Mild Mouth Rinse

Do I have to rinse with water after rinsing with bioXtra Ultra Mild Mouthrinse?

No. After swishing, spit and do not rinse with water. This allows you to maximize the benefits of the enzymes present in the mouthrinse. Also avoid drinking and brushing your teeth just after rinsing.

How often can I use bioXtra Ultra Mild Mouthrinse?

bioXtra Ultra Mild Mouthrinse contains 1450 ppm fluoride. Do not exceed 5 times per day.

Can I dilute bioXtra Ultra Mild Mouthrinse?

The flavor of bioXtra Ulta Mild Mouthrinse is very mild. However, if you do prefer to dilute it, used equal parts water and mouthrinse, and only dilute the quantity that is needed.

Do not keep diluted solutions.

Can I swallow bioXtra Ultra Mild Mouthrinse?

No, bioXtra Ultra Mild Mouthrinse should not be swallowed.

General

Can I be reimbursed when I purchase bioXtra products in my local pharmacy?

When prescribed by a doctor or dentist, a reimbursement may be applicable depending on the country where you live. Please ask your pharmacist or contact your private health insurance.

bioXtra products can also be purchased without a prescription.

Can you use bioXtra Mild Toothpaste and Mouthrinse if you don't suffer from dry mouth?

Yes, bioXtra Mild Toothpaste and Ultra Mild Mouthrinse are suitable for those not suffering from dry mouth. They contain enzymes that are also present in natural saliva.

bioXtra Ultra Mild Mouthrinse is not suitable for children 12 and under. Supervise children as necessary until capable of using without supervision.

Children six and under may use a pea-sized amount of bioXtra Mild Toothpaste, provided brushing is supervised to minimize swallowing. In case of intake of fluoride from other sources consult a dentist or doctor.