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iWhite Superior Whitening Kit

iWhite Superior Whitening Kit

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  • ✔️ Pre-filled trays whiten teeth with no mixing or preparation
  • ✔️ Visibly brighter smile in as little as a few sessions
  • ✔️ Low-concentration gel suitable for everyday adult use
  • ✔️ 10-day course targets surface and mild intrinsic staining
  • ✔️ Single-use trays ensure consistent gel delivery every time

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Is the iWhite Teeth Whitening Kit Right for You?

 

Wanting a brighter smile is one of the most common cosmetic concerns in the UK. Staining from tea, coffee, red wine, and everyday foods builds up gradually — and before long, teeth that were once white start looking dull or yellowed. The iWhite teeth whitening kit offers a convenient, at-home solution that fits around your daily routine without the cost of a professional dental appointment. Available from Cured Pharmacy for just £12.60, it's an accessible option for adults looking to refresh their smile. If you're also exploring other aspects of your oral health, you'll find a wide range of products in our oral health collection.

The iWhite Superior Whitening Kit contains pre-filled, ready-to-use dental trays. There's no mixing, no mess, and no need for custom-fitted trays. Each tray is designed to sit comfortably over your teeth, delivering the whitening gel directly to the enamel surface. It's a straightforward approach to a goal that many people share.

 

How Does the iWhite Superior Whitening Kit Work?

 

The whitening action relies on a low-concentration peroxide-based gel contained within each pre-filled tray. When the tray is placed over the teeth, the gel comes into contact with the enamel and begins to oxidise the pigmented molecules responsible for staining. This process gradually lightens the colour of the tooth surface over repeated applications.

  • The gel penetrates the outer enamel layer to target intrinsic and extrinsic stains.
  • Oxidation breaks down the chromogens (colour-causing compounds) within the enamel.
  • Repeated daily use over the treatment course builds on each session's effect.
  • The pre-filled format ensures a consistent gel concentration with every use.

It's worth noting that whitening products work on natural tooth enamel only. Crowns, veneers, bonding, and fillings will not respond to the whitening gel — something to bear in mind if you have dental restorations in visible areas.

 

Who Should Use the iWhite Superior Whitening Kit?

 

This kit is designed for adults aged 18 and over who want to reduce the appearance of surface staining and achieve a noticeably brighter smile at home. It suits people who find professional whitening treatments too expensive or inconvenient, and those who prefer a simple, no-fuss routine.

  • Adults with mild to moderate tooth discolouration from food, drink, or lifestyle habits.
  • People looking for a cost-effective alternative to in-clinic whitening.
  • Those who want a ready-to-use product with no preparation required.
  • Individuals who have completed a course previously and want to maintain results.

It is not suitable for children under 18, pregnant or breastfeeding women, or anyone with known hypersensitivity to peroxide-based products. If you have active gum disease, tooth decay, or exposed dentine, speak to your dentist before starting any whitening treatment.

 

How Does the iWhite Kit Compare to Other Whitening Options?

 

Feature iWhite Superior Whitening Kit Professional In-Clinic Whitening
Cost £12.60 £300–£1,000+
Convenience At-home, no appointment needed Requires dental visits
Peroxide concentration Low (OTC-compliant) Higher (dentist-supervised)
Tray type Pre-filled, ready to use Custom-fitted by dentist

 

Is the iWhite Superior Whitening Kit Suitable for Sensitive Teeth?

 

Tooth sensitivity is one of the most frequently reported concerns with any whitening product. The iWhite Superior Whitening Kit uses a low-concentration gel formulation, which is generally better tolerated than higher-strength products. That said, if you already experience sensitivity to hot or cold foods and drinks, you may notice some temporary discomfort during or after treatment. This usually settles within a day or two of stopping use.

If you have a history of significant dental sensitivity, it's sensible to speak to your dentist before starting. You might also want to use a sensitivity toothpaste in the days leading up to your whitening course. For broader dental care needs, browse our dental products collection for complementary options.

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.

iWhite Superior Whitening Kit specifications
Treatment category Cosmetic dental / teeth whitening
Mechanism of action Oxidation of enamel stain chromogens via low-concentration peroxide gel
Effective for Surface and mild intrinsic tooth discolouration
Suitable for Adults aged 18 and over with natural teeth
Active ingredient Low-concentration peroxide-based whitening gel
Pack size 10 pre-filled trays (upper and lower)
UK classification General Sale / Cosmetic
Preparation Pre-filled dental tray
Route of administration Oral (dental tray application)

Specifications of iWhite Superior Whitening Kit

 

What Is the iWhite Superior Whitening Kit and What Is It Used For?

 

The iWhite Superior Whitening Kit is an at-home cosmetic dental whitening system consisting of pre-filled trays containing a low-concentration whitening gel. It is used to reduce the appearance of tooth staining and discolouration caused by everyday factors such as tea, coffee, red wine, tobacco, and the natural ageing process. The kit is designed for adults who want a visibly brighter smile without visiting a dental clinic.

Tooth discolouration is extremely common. The NHS notes that teeth can become stained on the surface or from within the tooth structure itself. Surface stains — the type this product primarily targets — are often caused by dietary habits and are the most responsive to over-the-counter whitening treatments. The iWhite teeth whitening kit is intended for cosmetic use and does not treat dental disease.

 

What Do You Need to Know Before Using the iWhite Superior Whitening Kit?

 

Before starting any whitening treatment, it's important to understand who should avoid it and what precautions apply. Read the following carefully.

Do not use this product if you:

  • Are under 18 years of age.
  • Are pregnant or breastfeeding.
  • Have active tooth decay, gum disease, or open sores in the mouth.
  • Have known hypersensitivity or allergy to peroxide-based ingredients.
  • Have crowns, veneers, or composite fillings in the visible treatment area — the gel will not whiten these restorations.
  • Have recently undergone dental surgery or have exposed tooth roots.

Warnings and precautions:

  • Avoid swallowing the gel. If ingested in large amounts, seek medical advice.
  • Keep the product away from eyes. If contact occurs, rinse thoroughly with water.
  • Discontinue use if you experience severe or prolonged tooth sensitivity or gum irritation.
  • Do not use more frequently than directed — overuse will not accelerate results and may increase the risk of sensitivity.

Drug interactions:

  • No clinically significant drug interactions are currently known for low-concentration peroxide whitening gels used as directed.
  • If you are using any prescribed oral medications or medicated mouthwashes, consult your pharmacist before use.

 

How Should You Use the iWhite Superior Whitening Kit?

 

Using the kit correctly is key to getting the best results while minimising any risk of sensitivity. Follow these steps each time you use a tray.

  1. Brush and dry your teeth before application — this helps the gel make better contact with the enamel.
  2. Remove one pre-filled tray from its individual packaging.
  3. Place the tray firmly over your upper or lower teeth, pressing gently to ensure good contact.
  4. Leave the tray in place for 20 minutes. Do not eat, drink, or smoke during this time.
  5. Remove the tray and rinse your mouth thoroughly with water.
  6. Discard the used tray — each tray is for single use only.
  7. Repeat daily for up to 10 days, using a fresh tray each session.
Indication Age Group Dose Frequency
Tooth whitening Adults 18+ 1 pre-filled tray per session Once daily for up to 10 days
Maintenance Adults 18+ 1 pre-filled tray per session Occasional use as needed

If you're looking to support your overall oral hygiene routine alongside whitening, our oral health collection includes a range of complementary products.

 

What Are the Possible Side Effects of the iWhite Superior Whitening Kit?

 

Like all whitening products, the iWhite Superior Whitening Kit can cause side effects in some users. Most are mild and temporary.

Common side effects:

  • Temporary tooth sensitivity, particularly to hot and cold temperatures.
  • Mild tingling or discomfort in the teeth during or shortly after use.
  • Slight gum irritation or whitening of the gum tissue at the tray margins — this resolves quickly.

Less common side effects:

  • Prolonged tooth sensitivity lasting more than 48 hours after stopping use.
  • Mouth soreness or ulceration if the tray does not fit correctly.
  • Nausea if gel is accidentally swallowed — seek advice if this occurs.

If you experience any severe or persistent side effects, stop using the product and speak to your dentist or pharmacist. For general health concerns, you may also find useful information in our dental products section.

 

How Should You Store the iWhite Superior Whitening Kit?

 

  • Store below 25°C in a cool, dry place.
  • Keep away from direct sunlight and heat sources.
  • Do not freeze the product.
  • Keep out of reach and sight of children.
  • Do not use after the expiry date printed on the packaging.
  • Once a tray has been removed from its individual packaging, use it immediately and discard after use.

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 the iWhite Superior Whitening Kit online in the UK?

You can buy the iWhite Superior Whitening Kit directly from Cured Pharmacy, a GPhC-registered UK online pharmacy, for £12.60. Orders are dispatched quickly and delivered to your door. It's a straightforward way to get started with at-home whitening without visiting a shop.

How does the iWhite Superior Whitening Kit work in the mouth?

The pre-filled trays contain a low-concentration peroxide-based gel that oxidises the pigmented molecules (chromogens) embedded in tooth enamel. This oxidation process gradually breaks down stains, making the teeth appear lighter. Repeated daily use builds on each session's effect over the 10-day course.

How do I use the iWhite Superior Whitening Kit step by step?

Brush and dry your teeth first, then remove a pre-filled tray from its packaging and press it firmly over your teeth. Leave it in place for 20 minutes, then remove and rinse your mouth with water. Discard the tray after use — each one is single-use only.

How long does it take to see results with the iWhite teeth whitening kit?

Many users notice a visible improvement after just a few sessions, though the full effect is typically seen after completing the 10-day course. Results vary depending on the degree of staining and individual tooth characteristics. Maintaining good oral hygiene and limiting staining foods and drinks will help prolong the results.

What is the correct dose and how often should I use the iWhite kit?

Use one pre-filled tray per session, once daily, for up to 10 consecutive days. Do not use more than one tray per day — this will not speed up results and may increase the risk of sensitivity. For maintenance, occasional use as needed is appropriate once the initial course is complete.

Is the iWhite Superior Whitening Kit safe for sensitive teeth?

The kit uses a low-concentration gel, which is generally gentler than higher-strength whitening products. However, if you already have sensitive teeth, you may experience some temporary discomfort during or after use. Using a sensitivity toothpaste in the days before starting the course can help, and you should stop use if sensitivity becomes severe or persistent.

Who should not use the iWhite Superior Whitening Kit?

This product is not suitable for anyone under 18, pregnant or breastfeeding women, or people with active tooth decay, gum disease, or open mouth sores. It is also not appropriate for those with crowns, veneers, or composite fillings in the visible treatment area, as the gel does not whiten dental restorations. Always consult your dentist if you are unsure.

What are the side effects of the iWhite Superior Whitening Kit?

The most commonly reported side effects are temporary tooth sensitivity and mild gum irritation, both of which typically resolve within a day or two of stopping treatment. Less commonly, some users experience prolonged sensitivity or mouth soreness if the tray does not sit correctly. If you experience any severe or persistent side effects, stop use and speak to your pharmacist or dentist.

How do I manage tooth sensitivity caused by the iWhite kit?

If you notice sensitivity during the course, try skipping a day between sessions to allow your teeth to recover. Using a toothpaste formulated for sensitive teeth before and after each session can also help. If sensitivity is severe or does not settle within 48 hours of stopping use, consult your dentist.

Will the iWhite kit whiten crowns, veneers, or fillings?

No — whitening gels only work on natural tooth enamel and will not change the colour of crowns, veneers, bonding, or composite fillings. If you have restorations in visible areas, the treated natural teeth may end up a different shade to your restorations. Speak to your dentist before starting if this is a concern.

What are the alternatives to the iWhite Superior Whitening Kit?

Alternatives include other over-the-counter whitening strips, whitening toothpastes, and professional in-clinic whitening treatments carried out by a dentist. Professional treatments use higher-concentration peroxide gels and typically deliver more dramatic results, but at a significantly higher cost. You can explore a range of dental care options in our dental products collection.

How long do the results of the iWhite whitening kit last?

Results typically last several months, though this depends on your diet, lifestyle habits, and oral hygiene routine. Consuming staining foods and drinks such as coffee, tea, and red wine will cause gradual re-staining over time. Occasional maintenance sessions with the kit can help sustain the results.

Can I use the iWhite kit if I am taking prescribed medication?

No significant drug interactions are currently known for low-concentration peroxide whitening gels used as directed. However, if you are taking prescribed oral medications or using medicated mouthwashes, it is sensible to check with your pharmacist before starting. This is especially relevant if you have any underlying oral health conditions being managed medically.

What is the best time of day to use the iWhite Superior Whitening Kit?

Many people find it easiest to use the kit in the evening, after their last meal of the day, so they can avoid eating or drinking for a period after treatment. Morning use is also fine, provided you have brushed your teeth beforehand and can avoid staining foods and drinks for at least 30 minutes afterwards. Consistency matters more than timing — pick a time that fits your routine and stick to it.

What does the latest research say about at-home teeth whitening?

The NHS advises that teeth whitening is safe when carried out correctly using products that comply with UK regulations on peroxide concentration. Over-the-counter products containing low concentrations of hydrogen peroxide are considered appropriate for home use in healthy adults. For broader oral health support alongside whitening, browse our oral health collection.

How Should You Use the iWhite Superior Whitening Kit?

Using the iWhite Superior Whitening Kit correctly will help you get the best possible results while keeping your teeth and gums comfortable throughout the course. Always read the instructions included in the pack before you begin, and make sure your teeth are clean and dry before each session.

What Is the Correct Dose of the iWhite Superior Whitening Kit?

The recommended dose is one pre-filled tray per session, applied once daily. Using more than one tray per day will not improve results and may increase the likelihood of tooth sensitivity or gum irritation. Stick to the schedule below for safe and effective use.

When Is the Best Time to Use the iWhite Superior Whitening Kit?

There is no single "correct" time of day to use the kit, but many people find evening use most practical — ideally after your last meal, so you can avoid eating or drinking for at least 30 minutes after treatment. This reduces the chance of staining foods or drinks affecting the freshly treated enamel. Morning use works equally well, provided you have brushed your teeth beforehand and can avoid coffee, tea, or other staining substances for a short period afterwards.

Consistency is more important than timing. Choose a time that fits naturally into your daily routine and stick to it throughout the 10-day course.

How Long Can You Use the iWhite Superior Whitening Kit For?

The standard treatment course is 10 consecutive days, using one tray per day. After completing the course, you should allow your teeth a period of rest before repeating. Most people find that results last several months before any noticeable re-staining occurs, at which point a maintenance session or a new course can be started.

Do not use the kit continuously beyond the recommended 10-day course without a break. If you are unsure whether it is appropriate to repeat the course, speak to your dentist for personalised advice.

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

What Are the Most Common Side Effects of the iWhite Superior Whitening Kit?

The most frequently reported side effects with at-home whitening products are tooth sensitivity and mild gum irritation. These are generally temporary and tend to resolve within a day or two of stopping or pausing treatment. The low-concentration gel used in the iWhite Superior Whitening Kit is formulated to reduce the likelihood of these effects, but they can still occur — particularly in people who already have some degree of dental sensitivity.

  • Temporary tooth sensitivity to hot and cold temperatures.
  • Mild tingling or discomfort in the teeth during or shortly after tray use.
  • Slight whitening or blanching of the gum tissue at the tray margins — this is harmless and resolves quickly.
  • Mild gum tenderness or irritation if the tray presses against the gum line.

What Are the Less Common Side Effects of the iWhite Superior Whitening Kit?

Less commonly, some users experience side effects that persist beyond the immediate treatment period or are more uncomfortable than the typical mild sensitivity. These are not dangerous in most cases, but they do warrant attention.

  • Prolonged tooth sensitivity lasting more than 48 hours after stopping use.
  • Mouth soreness or ulceration, particularly if the tray does not fit correctly over the teeth.
  • Nausea or stomach discomfort if gel is accidentally swallowed in significant amounts.
  • Uneven whitening if the tray does not make consistent contact with all tooth surfaces.

What Are the Serious Side Effects of the iWhite Superior Whitening Kit?

Serious adverse reactions to low-concentration peroxide whitening products are rare when used as directed. However, you should stop use immediately and seek medical or dental advice if you experience any of the following.

  • Severe or worsening tooth pain that does not settle after stopping treatment.
  • Significant swelling of the gums, lips, or mouth.
  • Signs of an allergic reaction, such as rash, itching, or difficulty breathing — seek emergency medical attention if this occurs.
  • Persistent nausea or vomiting following accidental ingestion of gel.

What Should You Do If You Experience Side Effects?

If you notice mild sensitivity or gum irritation, try skipping a day between sessions to give your teeth time to recover. Using a toothpaste designed for sensitive teeth before and after each session can also help manage discomfort. If side effects are more than mild, stop using the product and consult your pharmacist or dentist before continuing.

For any severe reaction or if you are concerned about a symptom that is not listed here, contact your GP or call NHS 111 for guidance. Do not ignore persistent pain or swelling in the mouth.

Can the iWhite Superior Whitening Kit Interact With Other Products?

No clinically significant interactions between low-concentration peroxide whitening gels and prescribed medicines have been identified when the product is used as directed. That said, if you are using medicated mouthwashes, prescribed oral gels, or any other topical dental treatments, it is worth checking with your pharmacist before starting the whitening course. Using multiple active oral products simultaneously may increase the risk of irritation to the gum tissue or oral mucosa.

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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