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Buy Teeth Whitening Gels Online UK – Expert Results at Home
Teeth whitening gels have become a popular part of dental care in the UK. More people are now incorporating teeth whitening into their daily routines. At ProWhiteSmile, our selection of professional-strength gels can help restore brightness and brilliance to your teeth.
For decades, dental professionals have trusted hydrogen or carbamide peroxide as the most effective ingredients for whitening discoloured teeth.
Teeth Whitening Gels
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Original price was: 39.96£.34.99£Current price is: 34.99£.
Teeth Whitening Gels
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Original price was: 59.94£.49.99£Current price is: 49.99£.
About the gel
Plain carbamide peroxide. Nothing else.
Carbamide peroxide is the active ingredient used by dentists for tray-based home whitening. It breaks down on contact with the tooth into hydrogen peroxide and urea, lifting stains from inside the enamel.
There are many carbamide peroxide products on the market. ProWhiteSmile has supplied professional-strength gel for over 22 years. Our focus is quality, value, and honest information — not hype.
The gel will not whiten crowns, veneers, composite bonding or existing fillings. Those will stay their current shade. If most of your front teeth are restored, whitening may not be the right product for you.
Large 10ml syringes
Around 20 applications per syringe — far more than the 3ml syringes in most dental kits.
Two strengths
16% for longer wear or sensitive teeth. 22% for shorter sessions.
Tray-based
Works with any well-fitted whitening tray — ours, your dentist’s, or a thermoforming pair.
UK dispatch
Stored cool and posted same day before 2pm in discreet packaging.
How to use
Step by step
01
Brush and floss, then dry your trays so the gel adheres properly.
02
Place a thin ribbon of gel along the front of each tooth in the tray — about a grain of rice per tooth.
03
Seat the tray gently and wipe excess gel from the gums with a clean finger.
04
Wear for 30–60 minutes (22%) or up to several hours / overnight (16%).
05
Remove, rinse the tray and your mouth with cool water, store trays in the case.
06
Repeat daily for 7–14 days. Top up every few months as needed.
If you’re looking for professional-strength teeth whitening gel, you’ve likely come across a number of options — from dentist-prescribed products to high street brands and online suppliers. It’s worth understanding what you’re actually buying.
The active ingredient in professional whitening gel is carbamide peroxide. It’s the same compound used by dentists, and it works by breaking down into hydrogen peroxide in contact with saliva, penetrating the tooth enamel and oxidising stain molecules from within. There’s no surface scrubbing, no abrasion — just a straightforward chemical process that’s been used safely in dentistry for decades.
Carbamide peroxide gel comes in different concentrations — typically 10%, 16%, and 22%. The higher the concentration, the faster the result, though sensitivity can increase at higher strengths. Most people achieve good results with 16% used overnight, or 22% used for shorter sessions.
There are plenty of carbamide peroxide gels on the market. Quality varies. What matters is the concentration, the formulation stability, and whether the supplier knows what they’re selling.
ProWhiteSmile has been supplying professional-strength whitening gel in the UK since 2004 — over twenty years, hundreds of thousands of customers. We’re a specialist supplier, not a general health and beauty retailer. Whitening gel is what we do.
If you already have custom trays from your dentist, our gel fits standard tray syringes and works exactly as your dentist’s product does. If you need trays, we supply those too.
Why Use Teeth Whitening Gels?
Our dentist-formulated whitening gels are designed to deliver fast and effective results. You can now achieve long-lasting whitening using the same technique trusted by professionals—at a fraction of the cost and from the comfort of your home.
Custom Tray-Based Systems
Tray-based systems are highly recommended by dentists. These systems use whitening gels that begin working immediately upon contact, ensuring even and effective results.
Affordable Options
Teeth whitening gels starting from just £9.99!
Large 10ml syringes for excellent value.
Professional-grade formulas developed by dental experts.
Custom tray systems available exclusively from ProWhiteSmile.
ProWhiteSmile: Over 20 Years of Excellence
For over two decades, ProWhiteSmile has been a trusted provider of teeth whitening products. Our best-selling items include the 22% and 16% carbamide peroxide gels, available in generous 10ml syringes.
Our Offers:
Single Syringe: £9.99 – excellent value.
Pack of Four: £34.99 – save more.
Pack of Six: £49.99 – best value!
22% teeth whitening gel has proven to be safe and effective. 16% carbamide peroxide gels are also available. Slightly milder but does exactly the same job. Anyone using dental strength gels should always consult their Dentist first where He will ensure you are a good candidate for teeth whitening and give you an idea of what results to expect. The teeth bleaching gels offered by ProWhiteSmile are manufactured in the USA and are a Dental strength. Their gels are not over the counter type gels that can only reduce surface staining.
FAQ
Common questions about whitening gels
Why choose ProWhiteSmile over a Dentist’s bleaching treatment?
Our whitening gel was developed by a Certified Dental Laboratory for fast whitening action and long lasting results. The unique formula is pH balanced with high adhesion qualities designed to stay on tooth surface. The same teeth whitening gel is dispensed by Dental Offices worldwide. From the mouldable trays to the gel containing active ingredient Carbamide Peroxide to the at-home procedures, the treatment is essentially what a professional Dentist would prescribe.
The difference is what you pay! ProWhiteSmile is able to provide Whitening Systems that offer the same treatment that Dentists use at substantially lower cost. Dental Offices apply huge product mark-ups to cover their overhead; facilities, equipment, staff, time, administration, etc. Why pay more for the same thing?
How long do results last?
For most people, the results are long lasting. Exposure to coffees, teas, tobacco, red wines and certain other stain producing substances will eventually darken teeth again over time.
After initial treatment, some people do touch-ups every 6-8 months based on the amount of stain producing substances that they are exposed to. The ProWhiteSmile Whitening System is not a “supermarket” type tooth whitening kit and is considerably stronger than most “As Seen On TV” type kits.
The active ingredient in the whitening gel, Carbamide Peroxide is in Professional Dental Office strength (22%) and our massive 10cc syringes give up to 40 individual tray treatments. 3 times the amount of most syringe type kits sold at higher prices.
How long will it take until my teeth are whiter?
Whitening results often become apparent during the first few treatments, but typically a noticeable whitening effect becomes evident after about 8-10 treatments. Teeth will continue to whiten with each successive treatment until desired results are achieved.
Results vary, but in our experience backed by studies, show that 90 to 95% of people experience some level of whitening.
What is Carbamide Peroxide?
Carbamide Peroxide is the primary active ingredient or bleaching agent in the professional teeth whitening gel. It is essentially a variation of Hydrogen Peroxide and combined with the unique adherence properties of the specially formulated gel, it provides the chemical reaction required to safely whiten your teeth.
The Clinical Pharmacology Classification of Carbamide Peroxide states that there are “No significant interactions”, although some teeth sensitivity or minor gum irritation may be experienced, which normally subsides after completion of treatment.
What occurs during whitening?
During the teeth whitening process, the active ingredient in the gel, Carbamide Peroxide, is broken down and oxygen enters the tooth enamel bleaching embedded discoloured substances (stains). The structure of the tooth is not changed; only the tooth enamel becomes a lighter and whiter shade. Fillings, crowns, bridges and bondings, etc. are not affected.
How does the whitening treatment work?
A mouldable”tray” or mouthpiece is submerged into hot water for 5 seconds until soft and a bite impression is taken. After shaping the trays for upper and lower teeth, the whitening gel, which contains active ingredient Carbamide Peroxide, is applied to individual trays and inserted into the mouth and over the teeth. One tray at a time is left in place for 20-30 minutes.
Extending treatment times for faster whitening may be alright if your teeth are not over-sensitive. As the gel is activated, a slight tingling or bubbling sensation may be felt, which is the oxidation process taking place. Treatment should be done on upper and lower teeth each day until desired whitening is achieved. Twice a day treatments may also, achieve faster whitening results if teeth and gum sensitivity is not apparent.
Is teeth whitening really safe?
Yes, years of teeth whitening treatments by Dental Offices have proven that it is safe. If directions for use are followed, home application is also safe. If problems such as teeth sensitivity or gum irritations are experienced, the frequency of use should be reduced from every day to every other day. Some people experience mild to moderate teeth sensitivity however, it normally subsides quickly following completion of treatment.