A brighter smile does not have to mean a complicated routine. Our collection of Opalescence at-home teeth whitening kits brings together whitening systems for people who want effective, convenient treatment at home, with options to suit different routines, tray preferences and sensitivity concerns.
Opalescence is a professional teeth whitening brand developed by Ultradent and trusted by dental professionals. Its home whitening range includes two distinct approaches: Opalescence PF whitening gel, designed for use with dentist-approved custom trays, and Opalescence Go, a ready-to-use system with prefilled trays. Both are created to make home whitening more controlled, comfortable and straightforward.
Within this collection, you can choose Opalescence PF 16% in Regular, Mint or Melon flavours, with different syringe quantities for initial treatments, top-ups or longer whitening programmes. You will also find Opalescence Go 6% kits in Mint or Melon, including full and mini formats, as well as selected bundles with Opalescence whitening toothpaste.
Why choose an Opalescence teeth whitening kit?
Not all teeth whitening kits work in the same way. The active ingredient, tray design, gel consistency, wear time and level of professional guidance can all influence the experience. Opalescence has developed a range that gives users more than one route to a brighter smile, rather than relying on a single universal format.
Opalescence PF uses carbamide peroxide in a thick, adhesive gel. The viscous consistency is intended to keep the product inside the tray and reduce unnecessary movement towards the gums. The PF formula also contains potassium nitrate and fluoride, ingredients selected to support user comfort during whitening. It is intended for use with custom trays recommended by a dental professional.
Opalescence Go uses hydrogen peroxide in prefilled UltraFit trays. There is no need to dispense gel into a separate tray, which makes it a practical option for users who value convenience or do not already own custom whitening trays. The inner tray adapts to the teeth during use, while the outer tray helps position the system correctly before removal.
Opalescence PF 16%: whitening gel for custom trays
Opalescence PF 16% is a carbamide peroxide whitening gel created for supervised home use with custom-made or dentist-approved whitening trays. It is a suitable option for people who already have trays and want a flexible gel-based system that can be used as part of a personalised whitening plan.
The gel has a sticky, viscous texture that helps it remain in the intended area of the tray. This matters because careful placement can help minimise excess gel around the gumline and improve comfort. Only a small amount is required for each tooth compartment, so correct application is more important than filling the entire tray.
Opalescence PF 16% is commonly worn for four to six hours per application, although the exact schedule should always follow the product instructions and the recommendations of your dental professional. Some users prefer evening wear, while others incorporate the treatment into a quieter part of the day. The longer wear time makes it different from short-session whitening systems, but it can be easy to integrate into a consistent routine.
Our Opalescence PF 16% range includes Regular, Mint and Melon flavours. Regular is the neutral choice for users who prefer a less pronounced flavour. Mint offers a fresh, familiar sensation, while Melon provides a sweeter alternative. Flavour does not change the whitening concentration, so the best option is the one you are most comfortable using consistently.
Different pack sizes let you buy according to your treatment plan. Two-syringe options suit smaller top-ups, while four- and eight-syringe packs provide more continuity. Selected Patient Kits may include accessories such as a shade guide, tray case or travel-size toothpaste, so check each product page for the exact contents.
Opalescence PF gel should not be used with improvised, poorly fitting or unsuitable trays. A well-fitted tray helps distribute the gel more accurately and limits contact with the soft tissues. When in doubt, ask your dentist to assess your trays before starting or restarting a whitening cycle.
Opalescence Go 6%: prefilled trays with no gel application
Opalescence Go 6% is the convenient alternative for users who do not want to fill custom trays manually. Each treatment includes prefilled upper and lower trays, making the system ready to position and use. The trays are designed to adapt to the smile, so there is no separate impression process or gel syringe to manage.
To use Opalescence Go, identify the upper and lower trays, position the first tray over the teeth, bite gently and create light suction as directed. The coloured outer tray is then removed, leaving the flexible inner tray in place. The same process is repeated for the opposite arch. After the recommended wear time, remove the trays, dispose of them and clean your teeth according to the instructions.
Opalescence Go 6% contains hydrogen peroxide and is available in refreshing Mint and fruity Melon flavours. Full kits are suitable for a more complete whitening cycle, while mini kits can be a practical choice for shorter programmes, maintenance or users who want a smaller format. Some bundles include Opalescence whitening toothpaste to support the daily oral care routine before, during or after the whitening period.
The greatest advantage of Opalescence Go is simplicity. The gel quantity has already been prepared, the trays are single-use and there is no need to clean or store a reusable whitening tray. This makes the system useful for travel, busy schedules or anyone who prefers an individual treatment format.
Carbamide peroxide or hydrogen peroxide: what is the difference?
Both carbamide peroxide and hydrogen peroxide are established whitening ingredients. Hydrogen peroxide acts directly, while carbamide peroxide breaks down and releases hydrogen peroxide over time. This difference helps explain why Opalescence Go is used in shorter sessions and Opalescence PF 16% is generally worn for longer.
The best choice is not necessarily the strongest-looking percentage on the packaging. A 16% carbamide peroxide gel cannot be compared directly with a 6% hydrogen peroxide product by looking at the numbers alone. They use different active systems, different trays and different treatment times.
Choose according to the application method recommended for you, your previous whitening experience, your level of sensitivity and the schedule you can follow correctly. Consistent, responsible use is more important than selecting a product simply because its concentration appears higher.
Which Opalescence at-home teeth whitening kit is right for you?
Choose Opalescence PF 16% when you already have suitable custom trays, prefer a reusable tray system and want the flexibility of buying gel in different quantities. It is also the better match for users who want to select between Regular, Mint and Melon flavours or who already follow a whitening plan created by their dentist.
Choose Opalescence Go 6% when convenience is the priority. The prefilled trays remove the need to measure or dispense gel, and each treatment is individually prepared. It can suit first-time users who prefer a ready-to-use format, frequent travellers or people who do not own custom whitening trays.
Choose a bundle with Opalescence toothpaste when you want to combine a whitening cycle with a coordinated daily care product. Original Whitening toothpaste focuses on removing surface stains through regular brushing, while Sensitivity Relief Whitening toothpaste is designed for people who want whitening maintenance alongside help for sensitive teeth.
For a small top-up, consider a two-syringe PF pack or mini Go kit. For a longer cycle, a larger PF option, Patient Kit or full Opalescence Go kit may offer better continuity. Check the exact contents before ordering.
How to use an at-home whitening kit correctly
Start with a dental examination. Whitening works on natural tooth structure, but it does not whiten crowns, veneers, bridges, dentures or tooth-coloured fillings. Existing restorations may therefore look different after the surrounding natural teeth become lighter. Your dentist can identify cavities, gum inflammation, leaking restorations, exposed roots or other issues that should be addressed first.
Read the instructions supplied with your chosen product. Do not assume that all Opalescence products have the same wear time. PF gel and Go trays use different active ingredients and application systems, so their instructions are not interchangeable.
Use only the recommended amount. With Opalescence PF, more gel does not mean better results. Excess product can escape from the tray and irritate the gums. If gel reaches the soft tissues, remove the excess as directed. With Opalescence Go, do not modify, refill or reuse the disposable trays.
Do not eat, drink, smoke or use tobacco while the trays are in place. After each application, follow the cleaning instructions for your mouth and, where applicable, your reusable trays. Store the product as stated on the packaging and respect its expiry date.
Managing sensitivity during teeth whitening
Temporary tooth sensitivity and gum irritation are recognised side effects of peroxide-based whitening. They are often mild and short-lived, but they should not be ignored. Sensitivity can vary according to the individual, the condition of the teeth, the concentration used, the treatment frequency and tray fit.
If you experience sensitivity, follow the product guidance and speak to your dentist. They may recommend shorter sessions, less frequent applications, a pause in treatment or a product designed for sensitivity support. Do not increase wear time to compensate for missed applications.
A sensitivity toothpaste can be introduced before the whitening cycle and continued during the treatment if your dentist considers it appropriate. Opalescence Sensitivity Relief Whitening toothpaste contains ingredients intended to help relieve sensitivity while supporting daily stain removal. Brush gently with a soft toothbrush and avoid aggressive brushing, which can make discomfort around the gumline worse.
Sharp pain, persistent pain, strong gum irritation, visible tissue changes or symptoms that continue after stopping treatment require professional assessment. Whitening should never be painful enough to interfere with eating, sleeping or normal daily activity.
What results can you expect?
Whitening results are individual. The starting shade, type of discolouration, age of the teeth, previous dental treatment, dietary habits and consistency of use can all affect the outcome. Yellow-toned natural teeth often respond differently from grey, fluorosis-related or medication-related discolouration.
You may notice a change during the first applications, but the final result should be judged after the teeth have rehydrated and the shade has stabilised. Immediately after whitening, teeth can sometimes appear lighter because of temporary dehydration. Avoid comparing results only in different lighting conditions. A shade guide and photographs taken in the same place, at the same time of day and without filters provide a more useful comparison.
Coffee, tea, red wine, tobacco and strongly pigmented foods can contribute to new surface staining over time. Good oral hygiene and periodic professional cleaning help maintain a brighter appearance. Some users choose occasional top-ups, but these should be planned responsibly rather than repeated continuously.
Opalescence whitening toothpaste and maintenance
Whitening toothpaste and peroxide whitening gel do not perform the same role. Toothpaste mainly helps remove and control external surface stains caused by everyday food, drinks and tobacco. Peroxide products act on pigments within the tooth structure and can produce a more noticeable change in natural tooth shade.
Opalescence whitening toothpaste can be used as part of the maintenance routine after a whitening cycle. The Original formula is a practical everyday choice for stain removal, while the Sensitivity Relief version is intended for users who also experience sensitive teeth. These products can help preserve a clean, bright appearance, but they should not be presented as a replacement for a complete whitening treatment when deeper intrinsic discolouration is the concern.
For the best long-term result, combine appropriate home care with regular dental examinations and professional hygiene appointments.
Frequently asked questions about Opalescence at-home whitening kits
Do Opalescence kits whiten crowns, veneers or fillings?
No. Whitening agents lighten natural tooth tissue but do not change the colour of crowns, veneers, bridges, dentures or composite fillings. If visible restorations match your current shade, they may appear darker after whitening. Discuss the desired final shade with your dentist before replacing restorations.
Can I use Opalescence PF without custom trays?
Opalescence PF is intended for use with suitable dentist-recommended trays. Do not use it with improvised trays, sports mouthguards or poorly fitting retainers. If you do not have custom whitening trays, Opalescence Go may be a more appropriate format because it includes prefilled trays.
How much Opalescence PF gel should I place in the tray?
Use a small drop in the relevant tooth compartment, following the supplied instructions and your dentist’s guidance. Overfilling increases the chance of gel reaching the gums.
How long should I wear Opalescence PF 16%?
Opalescence PF 16% is commonly used for four to six hours per application. The correct schedule can vary, so follow the instructions supplied with the product and the plan approved by your dental professional.
Are Opalescence Go trays reusable?
No. Opalescence Go trays are prefilled, single-use treatments. Dispose of them after use and never attempt to add more gel or wear the same tray again.
Can I eat or drink while whitening?
No. Do not eat, drink, smoke or use tobacco while whitening trays are in place. Follow the aftercare advice supplied with the product, particularly regarding highly pigmented food and drinks.
Can I whiten my teeth if they are sensitive?
People with sensitive teeth may need an adjusted plan. A dentist may recommend shorter or less frequent sessions and sensitivity support.
Can I use an Opalescence kit before dental treatment?
Tell your dentist about any planned restoration, hygiene appointment or cosmetic treatment. Whitening is generally completed before shade-matched restorations, but timing matters because the final shade needs time to stabilise. Do not start immediately before or after restorative treatment without professional advice.
How should Opalescence products be stored?
Follow the storage instructions printed on the packaging and the individual product page. Keep whitening products away from heat, direct sunlight and children. Some formats may require cool or refrigerated storage. Do not use a product after its expiry date.
Is Opalescence suitable for people under 18?
No. Peroxide-based tooth whitening products in this range are not intended for use by anyone under 18. In the European Union, products that contain or release more than 0.1% and up to 6% hydrogen peroxide require professional involvement, and the first use in each treatment cycle must take place by a dental practitioner or under their direct supervision where an equivalent level of safety is ensured.
Shop Opalescence at-home teeth whitening kits
Explore our collection of Opalescence PF 16% gels, Patient Kits, Opalescence Go 6% prefilled trays and selected toothpaste bundles. Compare the application method, flavour, quantity and kit contents to find the most suitable option for your whitening plan.
For the best experience, choose your system with the guidance of a dental professional, follow the instructions carefully and stop treatment if you develop significant or persistent discomfort. A well-planned whitening routine should prioritise oral health, controlled use and a natural-looking result.
Find your Opalescence at-home teeth whitening kit at Hey Whitening and build a brighter smile routine around products designed for professional guidance and convenient home use.
