Teeth Whitening Kits UK
UK law limits at-home whitening to 0.1% peroxide. Yet many LED kits sold online far exceed it. Every kit below meets the UK limit: peroxide-free, or within the 0.1% peroxide rule. We've checked so you don't have to.
Most kits use an LED light to speed up whitening. We also include the MySweetSmile bundle as a no-device alternative, for those who prefer to whiten without a gadget. Every option below meets the UK 0.1% limit.
| Feature | MySweetSmile No-device alternative |
ESMILE | Postuvix | Colgate |
|---|---|---|---|---|
| Rating | 4.5/5 | 4.1/5 | 4.2/5 | 3.8/5 |
| Price From | £42.98 | £29.97 | £24.99 | £35.42 |
| Meets UK 0.1% Limit | ✓ | ✓ | ✓ | ✓ |
| Peroxide-Free | ✓ | ✓ | ✓ | ✗ |
| PAP Formula | ✓ | ✗ | ✗ | ✗ |
| LED Included | ✗ | ✓ | ✓ | ✓ |
| What's Included | Powder, PAP strips, & spray | 16-LED light, tray, 3 gel pens | Dual-light LED, tray, gel pen | LED light, serum pen |
| Brand | Product | Formula | Image | Rating | Price from | Buy Now |
|---|---|---|---|---|---|---|
| MySweetSmile 🏆 Best Value Bundle No-Device Alternative | Whiten & Brighten Bundle — peroxide-free powder + PAP strips (21 treatments), plus a free breath spray and delivery. The complete at-home routine. Read our full review → | Peroxide-Free |  | ⭐⭐⭐⭐½ 4.5/5 8,000+ reviews on Trustpilot | £42.98 Out of Stock RRP £85.96 | Claim offer |
| ESMILE | 16 LED Whitening Kit — includes a 16-LED accelerator light, mouth tray and three whitening gel pens. A complete LED system for at-home use. | Gel |  | ⭐⭐⭐⭐ 4.1/5 1,785 customer reviews | £29.97 | Check Price |
| Postuvix | LED Kit with Red & Blue Light — dual-light (blue + red) device with mouth tray and bleaching gel pen. Sodium bicarbonate formula for home use. | Sodium Bic |  | ⭐⭐⭐⭐ 4.2/5 25 customer reviews | £24.99 Out of Stock | Check Price |
| Colgate | Max White Ultimate LED Kit — flexible LED whitening light + whitening serum pen (2.5ml), 10-minute treatments for at-home use | Peroxide |  | ⭐⭐⭐ 3.8/5 628 customer reviews | £35.42 RRP £75.00 | Claim offer |
Prices checked and correct as of 15 October 2026. Prices and offers may change — check the link with the retailer for the latest. |
What is a Teeth Whitening Kit?
A teeth whitening kit typically includes everything you need for an at-home whitening treatment — usually a set of mouth trays, a whitening gel or serum, and sometimes an LED accelerator light. Kits offer a more complete whitening experience compared to strips or powder and are ideal if you want longer-lasting, more noticeable results.
How to Choose the Right Teeth Whitening Kit UK
When choosing a teeth whitening kit, buyers should consider their sensitivity level, how quickly they want results, and their budget. Look for kits that are UK-compliant and suited to your needs. If you have sensitive teeth, a peroxide-free PAP formula is usually the gentlest place to start. For faster results, kits with an LED accelerator light can help speed up the whitening process. Always follow the manufacturer’s instructions for best results.
The best home whitening kits pair an LED accelerator light with a gentle, UK-compliant formula: either peroxide-free (such as PAP) or within the 0.1% peroxide limit. Be wary of kits advertising “professional-strength” or high-percentage gels, because in the UK those can only legally be supplied through a dentist. Whether you’re buying your first kit or upgrading your routine, our comparison table above makes it easy to find the right one for your needs and budget.
Types of Teeth Whitening Kits UK
There are several types of teeth whitening kits UK shoppers can choose from. LED light kits use an accelerator light combined with a whitening gel for faster results. Gel tray kits use custom or standard mouth trays filled with whitening gel worn for a set period each day. Combination kits include multiple products such as a whitening pen, gel and tray for a complete whitening system. Each type suits different lifestyles and budgets.
Are Teeth Whitening Kits UK Safe?
Teeth whitening kits sold for home use in the UK are subject to regulations on whitening agents and their concentrations. The kits we list are intended for at-home use and use whitening agents at consumer-permitted levels. As with any whitening product, results and sensitivity vary from person to person, so always read the manufacturer's instructions before use and consult your dentist if you have any concerns — particularly if you have sensitive teeth, gum problems, or existing dental work.
Why Compare Teeth Whitening Kits UK?
With so many teeth whitening kits UK shoppers can choose from, comparing products side by side saves time and money. The White Choice does the research for you — comparing price, effectiveness, safety and reviews so you can make an informed choice. All products on this page are UK-compliant and available for fast delivery.