Professional Teeth Whitening in South Kensington
Safe, Effective, Dentist-Prescribed
We use Boutique Whitening — a premium, dentist-prescribed home whitening system. Custom trays and professional-strength gels deliver predictable results in the comfort of your home, with your treatment supervised by a qualified dentist throughout.
Why We Use Boutique Whitening
We use Boutique Whitening, a UK-formulated, dentist-prescribed system. Unlike single-session in-chair treatments that can dehydrate teeth, Boutique provides gradual, deep-penetrating results with built-in desensitising agents.
Deep Penetration
Releases oxygen into the enamel to break down deep-set stains, not just surface marks.
Reduced Sensitivity
Contains Potassium Nitrate, a desensitising agent designed to help minimise sensitivity during treatment.
You Control It
Unlike a one-off appointment, you control the shade. Stop when you reach your desired brightness.
Tailored to Your Lifestyle
Boutique By Day
6% Hydrogen Peroxide
Wear for just 1 hour per day.
Designed for busy professionals or those who prefer not to sleep with trays in.
Boutique By Night
10% or 16% Carbamide Peroxide
Wear while you sleep.
Suitable for those who prefer passive overnight treatment.
From Impression to Brightness
A Simple 3-Step Process
The Records Visit
20 Minutes
We assess your dental health and take precision impressions for custom super-seal trays.
Fit & Collection
1 Week Later
We try in your trays, demonstrate how to apply the gel, and record your starting shade.
The Whitening
2–3 Weeks
Wear your trays at home according to the prescribed schedule. Results are typically visible within a few days. Keep your trays for convenient future top-ups.
Aftercare & Maintaining Results
How to Keep Your Smile Bright
Do
Follow the “White Diet” during treatment — avoid staining foods and drinks
Use a sensitive toothpaste before and during treatment
Rinse trays with lukewarm water after each use
Store your trays safely for future top-ups
Maintain regular hygiene appointments for best results
Avoid
Red wine, coffee, tea, curry, and beetroot during treatment
Smoking — stains teeth and counteracts whitening
Over-use of gel beyond prescribed schedule
Acidic foods immediately after whitening (citrus, vinegar)
Using non-prescribed whitening products alongside treatment
Understanding the Risks
Balanced Information for Informed Decisions
Tooth Sensitivity
Some patients experience temporary sensitivity to hot and cold during the whitening period. This typically resolves within a few days of completing treatment. Desensitising toothpaste and adjusting the wearing schedule can help manage this.
Gum Irritation
If whitening gel comes into contact with the gums, it may cause temporary irritation or whitening of the soft tissue. Custom-fitted trays minimise this risk. If irritation occurs, contact us for advice.
Uneven Results with Existing Restorations
Whitening gel does not change the colour of existing crowns, veneers, fillings, or bonding. If you have visible restorations, they may need to be replaced after whitening to match your new shade. We discuss this before treatment begins.
Results Vary
The degree of whitening achieved depends on the natural shade, type of staining, and individual tooth structure. Some teeth respond more readily than others. We assess your suitability and provide realistic expectations during consultation.
Real Patient Stories
How whitening fits into broader treatment plans.
The “Bleach, Then Bond” Approach
Patient Concern: The patient wanted a brighter, more even smile but was unsure which treatment was right for them.
Treatment: A course of Boutique Whitening was completed first to lift the base shade. This was followed by invisible composite fillings to blend with the new, brighter colour.
Outcome: A natural, uniform result achieved with a conservative, non-invasive approach.
Individual results may vary. A consultation is required to determine suitability.
Whitening Before Restorations
Patient Concern: The patient had existing fillings that were visible. Fillings do not respond to whitening gel.
Treatment: Natural teeth were whitened first. After a 2-week stabilisation period, old fillings were replaced with composite matched to the new, brighter shade.
Outcome: A cohesive, uniform appearance with all teeth matching seamlessly.
Individual results may vary. A consultation is required to determine suitability.
Safety: Why Professional Whitening Matters
Understanding the Difference
In the UK, only dental professionals are legally permitted to provide whitening products containing effective concentrations of hydrogen peroxide (up to 6%). Products available without a dental prescription are limited to lower concentrations that may be less effective.
Professional whitening involves a dental health assessment before treatment, custom-fitted trays manufactured from precision impressions, and ongoing supervision throughout the whitening period. This helps ensure treatment is both safe and effective for your individual circumstances.
Important: We advise against using whitening products purchased online or from non-dental providers. Some of these products contain acidic or abrasive ingredients that may damage tooth enamel. If you have used such products and experienced sensitivity or damage, please contact us for an assessment.
Boutique Whitening Package
Our comprehensive whitening package includes everything you need for a complete course of treatment.
The Boutique Package Includes:
- Full dental health check
- Custom-made super-seal trays
- Full kit of Boutique whitening gels
- Desensitising toothpaste included
- Shade assessment and guidance
A dental health assessment is required before whitening can begin. Pricing includes the full package as described above.
Membership Plan
Join for £20/month and receive 50% off all treatments. Members also receive two check-ups and two hygiene visits per year included in their membership.
Learn About Membership →Your Whitening Team
GDC-registered professionals supervising your treatment.
Frequently Asked Questions
Smile Gallery
See the remarkable improvements we've achieved for our patients
BEFORE
AFTERRestoring a Chipped Front Tooth
Composite Bonding
BEFORE
AFTERTransforming Discoloured & Chipped Teeth
Composite Bonding
Teeth Whitening London – Safe, Professional & Prescribed by a Dentist
If you are searching for professional teeth whitening in London, it is essential that treatment is prescribed and supervised by a qualified dentist. In the UK, only dental professionals are legally allowed to provide whitening gels containing safe and effective levels of hydrogen peroxide.
At Smile Dentist in South Kensington, your whitening treatment is fully regulated, tailored to your dental health, and monitored for optimal results. We treat patients from across Kensington, Chelsea, Fulham, and Central London who want predictable whitening without risk to their enamel.
Whitening: The Foundation of Your Smile Makeover
Teeth whitening is often the first step in a larger cosmetic treatment plan.
Many patients choose to whiten before:
Should I Have a Hygiene Appointment Before Whitening?
Yes — we recommend it.
Professional cleaning removes plaque, tartar, and surface staining so the whitening gel can penetrate evenly. Many patients combine their whitening treatment with a visit to our hygiene team for optimal results.
Clean enamel allows whitening gels to work more effectively and helps reduce the risk of uneven colour.
Visit Smile Dentist London
South Kensington, London
Address
20 Old Brompton Road,
South Kensington,
London, SW7 3DL
3-minute walk from South Kensington Station
Hours
Mon – Fri:9am – 6pm
Saturday:10am – 4pm
Sunday:10am – 4pm
Registered & Regulated
Our team are fully registered and regulated for practice in the United Kingdom. Our patients should expect nothing less.
Meet The Experts
Our hand-picked team of clinicians is dedicated to the art and science of your smile.
Dr. Yasha Y Shirazi
Principal Dentist & Clinical Director
GDC: 195843
Meticulous preventative care meets high-quality cosmetic dentistry. Yasha offers complicated surgical extractions, complex treatments, and smile makeovers.
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Dr. Kamran Yazdi
Dentist
GDC: 197926
Conservative dentistry specialist with postgraduate degrees from UCL Eastman. Believes in preserving as much natural tooth structure as possible.
View ProfileDr. Andreia Phipps
Dentist
GDC: 229601
Friendly and enthusiastic dentist passionate about cosmetic and aesthetic restorative dentistry. Patient-centred care is at the heart of everything she does.
View ProfileDr. Reza Davari
Dentist
GDC: 302422
Award-winning dentist with the London Gold Medal. Combines advanced clinical skill with a calm, gentle manner.
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Dr. Narges Ameri
Dentist
GDC: 325081
Specialist-trained prosthodontist and implantologist. Former Assistant Professor at Tehran University with expertise in complex restorative cases.
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Jack Button
Dental Hygienist & Dental Therapist
GDC: 244367
Clinical Director and only Dental Hygienist awarded Fellowship to the International Academy for Dental Facial Esthetics.
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Laila Alhussein
Dental Hygienist
GDC: 328882
UCL-trained hygienist dedicated to promoting oral health in a warm, welcoming environment. Passionate about patient comfort and connection.
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