Professional Teeth Whitening vs At-Home Kits | Epsom Smiles

Professional Teeth Whitening vs At-Home Kits — Why the Results Aren’t Even Close

Everyone wants a brighter smile, especially with Christmas parties, family events and New Year celebrations coming up. But if you’ve been debating between professional teeth whitening and the endless stream of at-home whitening kits, here’s the truth: the results are not remotely the same.

At Epsom Smiles, we see the same pattern every year — patients try over-the-counter whitening strips or online kits, get disappointed, and eventually come in for safe, predictable, long-lasting results.

Here’s exactly why professional whitening wins every time, and how our Christmas Dental Exam Offer gives you the perfect opportunity to get a brighter smile at the best price.


1. Professional Whitening Uses Stronger, Clinically Approved Gels

At-home kits have to follow strict legal limits, meaning they can only include 0.1% hydrogen peroxide.

In comparison, dental practices can use up to 6%, under the supervision of a trained clinician.

That difference alone is why:

  • Results at home = often patchy, slow and inconsistent
  • Professional results = deeper whitening, faster changes, and safer chemistry

If you’ve ever tried strips for weeks with barely-there results, this is why.


2. It’s Designed Specifically for Your Teeth

Your teeth are unique — shade, enamel thickness, sensitivity levels, and current dental health all matter.

Over-the-counter kits are one-size-fits-all, which means:

  • Tray fit is poor
  • Gel distribution is uneven
  • Gum irritation risk is higher

A dentist, however, takes precise digital scans or impressions to create custom whitening trays that ensure even coverage and predictable shade improvement.


3. It’s Safer — No Guesswork, No Risky Side Effects

At-home whitening can cause:

  • Chemical burns on the gums
  • Severe tooth sensitivity
  • Damage to enamel if used incorrectly
  • Worsening of untreated dental problems

Before we whiten anyone’s teeth at Epsom Smiles, we carry out a comprehensive dental exam to check:

  • Are the gums healthy?
  • Are any cavities present?
  • Are any teeth cracked, worn or sensitive?

This step alone protects your long-term oral health AND ensures the whitening treatment works as intended.


4. Faster, Longer-Lasting Results

A dentist-supervised whitening programme achieves results that are:

  • Up to 8+ shades brighter
  • Much longer lasting
  • Easier to maintain with top-up gels

Most at-home kits provide temporary surface-level lightening that fades quickly — usually within weeks.


5. It’s Better Value in the Long Run

People often buy multiple kits because they don’t get the brightness they want.

By the time a patient visits us, they’ve already spent more money than a single professional whitening treatment would cost — and still haven’t achieved the results.

With professional whitening, you get:

  • •Predictable results
  • •Custom trays you can re-use for years
  • •Dentist-grade gels
  • •Expert support

It’s smarter, safer, and more cost-effective.


Perfect Timing: Our Christmas Dental Exam Offer Gives You £100 Off Whitening

Right now, we’re running our Christmas Dental Exam Offer — the best way to start your whitening journey.

🎄 £60 Comprehensive Dental Exam – Includes X-rays, digital scans and a full dental health assessment.

PLUS: £100 Off Professional Teeth Whitening

(Available exclusively after your exam.)

🎁 And a Free Christmas Goodie Bag

Packed with premium oral care vouchers and exclusive clinic discounts.


Ready for a Brighter, Whiter Smile This Christmas?

Click below to book your £60 Christmas Dental Exam and unlock £100 off whitening.

👉 Book Your Appointment