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Professional teeth whitening

A brighter smile, prescribed safely.

Professional whitening gel and custom-fitted trays, prescribed by a UK dentist. Whiten at home, at your own pace, and see your smile lift shade by shade.

  • 18+adults only, by law
  • Customtrays made for you
  • At homeat your own pace
See the difference
Your AFTER photo goes here
Your BEFORE photo goes here

[First name], [X] weeks of Bigsmile whitening

Real patient, shown with their permission. Photos are unedited. Results vary from person to person.

Why go professional

Dentist-prescribed, not shop-bought.

Whitening strips, paints and pens from the shops are limited by law to very low strengths. Professional whitening is stronger, fitted to your teeth and supervised by a dentist.

Bigsmile whitening Recommended

  • Your suitability is checked by a GDC-registered dentist first
  • Professional-strength gel, prescribed for you
  • Custom trays made to fit your teeth, so the gel stays where it should
  • Advice on sensitivity, aftercare and top-ups

Shop-bought kits

  • No dental check before you start
  • Very low strength, so results are often limited
  • One-size trays or strips that may not fit well
  • No one to ask if your teeth feel sensitive
In the UK, teeth whitening products stronger than 0.1% hydrogen peroxide can only be provided by a registered dental professional, and only for adults aged 18 or over. Whitening from beauty salons or unregistered sellers is illegal and can be unsafe.
How it works

Whiter teeth in four steps

Simple, safe and done at home, with your dentist on hand throughout.

  1. Dentist check

    Complete your free assessment. A dentist checks your teeth and gums are healthy enough to whiten.

    Free
  2. Impressions

    [Describe how you take impressions for the trays: at-home kit, or a scan at a partner practice.]

  3. Your kit arrives

    Custom trays and your prescribed gel arrive in our white and gold Bigsmile box.

  4. Whiten at home

    Wear your trays for [X] hours a day for about [X] weeks, as your dentist advises.

    Top-ups available
Your whitening kit

Brightness, beautifully boxed.

Everything you need to whiten safely at home, in our signature white and gold box.

  • Custom-fitted whitening trays
  • Dentist-prescribed whitening gel
  • Tray storage case
  • Step-by-step instructions
  • Dentist support throughout
  • [Any extras you include]
Is whitening right for you?

Honest advice, before you start.

Your dentist will always check you're suitable first. Here's a quick guide.

Whitening works well on

  • Natural teeth that have yellowed over time
  • Staining from coffee, tea, red wine or smoking
  • Teeth that have darkened with age
  • Smiles after aligner treatment, for a fresh finish

Worth knowing

  • Whitening doesn't change the colour of crowns, veneers, bridges or fillings
  • Gum disease or decay needs treating before you whiten
  • If you're pregnant or breastfeeding, dentists usually advise waiting
  • Some people notice temporary sensitivity, which usually settles
Keep it bright

Simple aftercare

Go easy on staining drinks

Especially just after whitening. Cut back on coffee, tea and red wine, or use a straw.

Brush twice a day

Use a fluoride toothpaste. A sensitive toothpaste can help if your teeth feel tender.

Top up when you need

Keep your trays safe and use top-up gel to refresh your shade, as advised.

Keep up check-ups

Regular dental check-ups and hygiene visits keep your smile healthy and bright.

The Smile Bundle

Straighten, then brighten.

Combine clear aligners with professional whitening for the complete Bigsmile finish, and save compared with buying separately.

Explore the Smile Bundle
FAQs

Whitening questions

Can't find your answer? Email smile@bigsmile.co.uk or call 0333 054 1234.

Is teeth whitening safe?

Yes, when prescribed by a registered dentist. In the UK, whitening must be carried out or prescribed by a dental professional, and we check your suitability first.

Will whitening make my teeth sensitive?

Some people notice mild, temporary sensitivity. It usually settles, and your dentist can advise on ways to reduce it.

How long do results last?

It varies from person to person and depends on things like diet and smoking. Top-up gel helps keep your smile bright.

Will it whiten my crowns or fillings?

No. Whitening only works on natural teeth, so crowns, veneers and fillings will stay the same colour. Your dentist will talk this through with you.

Can I whiten my teeth during aligner treatment?

Many people whiten at the end of treatment. Your dentist will advise the best time for you.

Your next step

Not just whiter teeth. Your confidence.

Start your free assessment and a dentist will check whitening is right for you. It only takes a couple of minutes.