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Home / Shop / Teeth Whitening Kits

Teeth Whitening Kits

Teeth whitening kits are the most effective way to achieve noticeable results at home. Designed to remove stains caused by coffee, tea, wine, smoking, and everyday habits, these systems deliver visible whitening in as little as 7–10 days. Unlike traditional high-peroxide whitening systems, our kits use Sodium Percarbonate as the active ingredient, releasing oxygen to break down stains while helping to reduce the discomfort often associated with stronger treatments.

Smile Science Harley Street teeth whitening refill kit with whitening gel syringes and activator pen

Professional Teeth Whitening Refill Kit

£19.99

Extend your whitening results without starting from scratch. Compatible with any existing LED whitening device, this refill contains the same Sodium Percarbonate-based whitening gel used in the full kit.

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Smile Science Harley Street LED-activated teeth whitening kit with mouth tray, whitening syringes, and activator pen

Professional Teeth Whitening Kit

£29.99

LED-activated teeth whitening kit delivering visible results in 7–10 days. Developed by the dental professional behind Colgate Total and Philips Zoom, this complete at-home system uses a Sodium Percarbonate-based formula.

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Smile Science Harley Street professional teeth whitening treatment with Vita White toothpaste, tooth gloss, and whitening tray

Professional Teeth Whitening Treatment

£49.99

The most complete whitening system in the range — winner of the Beauty Awards in the Oral Care category. Combines full treatment with vitamin-enriched aftercare for long-lasting results.

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Why Our Whitening System Is Different

Most whitening products rely on either high peroxide levels — fast, but can increase sensitivity — or gentler systems that may take longer to show results. Our kits are designed to balance both, using oxygen-based whitening to deliver effective stain removal while aiming to minimise irritation.
Uses Sodium Percarbonate instead of high-peroxide formulas
Designed to balance whitening results with reduced sensitivity
Structured system for consistent, repeatable results

Which Kit Is Right For You?

New to whiteningStart with the LED Teeth Whitening Kit — a complete, guided system built for first-time users.
Already whitened beforeUse a Refill Kit to top up your results without buying the full system again.
Want the best resultsChoose the Complete Treatment & Aftercare system for the most comprehensive, long-lasting routine.

Choose Your Whitening Plan

Start Whitening

LED Teeth Whitening Kit

  • Ideal for first-time users
  • Visible results in 7–10 days
  • Easy at-home treatment
Start Whitening
Maintain Results

Refill Whitening Kit

  • Extend your whitening results
  • Simple top-up routine
  • Keeps teeth brighter for longer
Maintain My Results
Complete Routine

Treatment & Aftercare Kit

  • Best value option
  • Includes treatment + maintenance
  • Designed for long-lasting results
Get Complete System

Compare Your Options

Option Best For Results Speed Sensitivity Routine
LED Whitening Kit First-time users Fast (7–10 days) Low–Medium Full treatment
Refill Whitening Kit Maintaining results Medium Low Top-up only
Complete Whitening System Best long-term results Fast + long-lasting Low Treatment + maintenance

How Teeth Whitening Kits Work

The whitening gel releases oxygen, which breaks down stain molecules on the enamel. The LED device helps accelerate this process, allowing more efficient whitening over a shorter period. For best results, many people start with a full whitening treatment and then maintain their smile with regular top-ups.

Related Guides

Best Teeth Whitening Kits UK Teeth Whitening Strips vs Kits LED Whitening vs Strips Whitening for Sensitive Teeth

Teeth Whitening Kits FAQ

Will this kit cause sensitivity?This kit has been formulated specifically with sensitivity in mind. The Sodium Percarbonate-based formula avoids the high peroxide concentrations most associated with sensitivity. Some users may experience mild, temporary sensitivity during treatment — this is normal and typically resolves within 24–48 hours.
How quickly will I see results?Most users notice visible improvement within the first few sessions. The most significant change is typically visible by the end of the 7–10 day course.
Can I use this kit if I have sensitive teeth?Yes — this kit was developed specifically for use on sensitive teeth. If you experience sensitivity, simply reduce the session length or skip one application and resume when it subsides.
How often should I repeat a full treatment course?We recommend waiting at least 4–6 weeks after completing a course before beginning another. Between courses, daily maintenance products help preserve results and reduce how frequently full treatments are needed.
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