by Malavi Sivakanesan • 27 March 2026 • 5 min read
There are so many options for teeth whitening: toothpaste, gels, trays, and now, take-home kits. It’s important to understand that home teeth whitening provided by a dentist is different from an over-the-counter product you can buy at the local supermarket. Let’s dive in for a better understanding.
What is Home Teeth Whitening?
Home teeth whitening is a safe and effective way to brighten your smile without visiting the dental clinic for every session. There are two ways you can do this: buy any non-prescription whitening product or visit a dentist once for a kit.
Dentist-provided teeth whitening kits usually contain more strength than the average whitening toothpaste or gel. However, these kits don’t use enamel bleaching solutions at concentrations as high as those used in-clinic. So they basically exist in a Goldilocks zone where teeth don’t whiten as fast, but also don’t become sensitive from harsh peroxide laser treatment.
Additionally, at-home whitening kits from dentists include an initial consultation and ongoing monitoring to make sure the treatment is progressing as planned. Some whitening kits come with a shade guarantee. If the product is not working as it should, your dentist will immediately let you know and assist with the guaranteed refunds.
How are Dental Care Teeth Whitening Kits Different from In-Clinic Whitening?
Home whitening kits are flexible, gradual, and convenient, with dentist supervision ensuring safety and effectiveness.
In-clinic whitening delivers faster, immediately noticeable results but carries a slightly higher risk of sensitivity and requires more time in the dental chair.
Home Teeth Whitening Kits and In-Clinic Whitening: A Comparison
| Home Whitening Kits | In-Clinic Whitening | |
|---|---|---|
| Application | Dentist supervised | Dental staff administered |
| Method | Custom-made trays worn at home over days or weeks | Whitening gel applied and then activated by a special light |
| Convenience | Convenient use at home | Requires a scheduled appointment at the dental practice |
| Gel Strength | Professional-strength gels, tailored to sensitivity levels | Higher concentration gels used under direct supervision |
| Speed of Results | Gradual whitening, noticeable within 1–2 weeks | Immediate results, often within a single session |
| Risks | Long-term shade control with ongoing use | Fast results may require top-ups |
| Cost | Generally lower than in-clinic whitening (£350+ depending on kit) | Higher due to chairside treatment and equipment |
| Suitability | Ideal for those wanting flexibility and gradual improvement | Best for those seeking instant results for events or special occasions |
What’s Included in a Dentist Kit to Whiten Your Teeth at Home?
A professional home whitening kit typically contains:
Custom-Made Trays
Designed to fit your teeth perfectly for comfort and even gel distribution.
Professional-Strength Whitening Gel
Usually peroxide-based and formulated to lift stains without harming enamel.
Shade Tabs
To track your progress and compare results.
Instruction Manual
Detailed guidance on using the kit and other treatment-related information.
Home Kits for Teeth Whitening in London from Complete Smiles
Complete Smiles offers a range of premium home teeth whitening kits from Philips Zoom! and Boutique brands.
- Philips Zoom! DayWhite – Quick daily sessions for busy schedules.
- Philips Zoom! NiteWhite – Gentle overnight whitening.
- Boutique B1 Black Diamond Kit – A premium option with a shade guarantee.
You can choose between day or night treatments depending on your lifestyle.
To receive a kit, book an appointment online or call us on 020 4541 1150. Each kit is prescribed only after a dental consultation, ensuring it is suitable for your oral health.
Malavi Sivakanesan
Malavi Sivakanesan is the principal dentist and co-founder at Complete Smiles in Harrow, Greater London. She is responsible for establishing the Complete Smiles brand throughout the United Kingdom and Europe and has 5 successful practices under her strong leadership.