FOREO issa teeth whitening review: I got my teeth FOUR shades whiter – save 30% with our code

PROFESSIONAL teeth whitening can be extremely tough on our wallets. With the cost, potential sensitivity issues and faff associated with professional treatments, I’ve always looked for ways to upgrade my smile at home. The device is available for less than £60 with our code FOREO issa Teeth Whitening Set, £84.90 £59.43 with code SUN2026 I’ve tried whitening powders, strips, pens… the list goes on. But one thing I’d never tried was an LED whitening treatment. Sign up for the Shopping newsletter Thank you! FOREO issa’s LED teeth-whitening set uses an LED gum shield alongside a PAP gel, and claims to deliver whiter teeth in just six days through a clever combination of light and pulsations. Traditional teeth whitening can cost anywhere from £200 to £1,000, so I was hoping that this set, which is currently reduced to less than £60 with our discount code, could save me a fair whack. FOREO issa Teeth Whitening Set: Quickfire Q&A How much is it? It retails at £84.90, but you can use The Sun’s exclusive 30% off code to bring the price down to just £59.43 – just use SUN2026 at checkout (code is valid until September 1st 2026). Who is it best for? Anyone looking to whiten their teeth at home without having to shell out lots of money.What we loved: It’s super easy to use, delivers genuine results, and feels safe. What we didn’t love: Applying the gel from the syringe can be a bit fiddly, particularly when trying to achieve even coverage on the gum shield, but the vibration settings help with this. The mouth piece has three different LED light settings. FOREO issa Teeth Whitening Set, £84.90 £59.43 with code SUN2026 The FOREO issa Teeth Whitening Set combines LED light, pulsations and a peroxide-free whitening PAP gel to help remove stains and whiten teeth. One particular strength of this set is that the gel contains 18% PAP rather than peroxide, making it gentle on both sensitive teeth and gums – which was a massive plus for me as I have sensitivity issues. The device is tiny, so it can easily be chucked into your hand luggage, and it only requires a USB-C cable to charge; simply connect the device to the app and select the treatment you want. Most read in Shopping There are three modes: a combination of red and blue light, blue light for whitening or red light for gum care. There are also five intensity levels, low- or high-LED options, and a choice between soothing and constant pulsation patterns. FOREO’s Sonic Pulse Technology helps distribute the gel evenly across the teeth, reducing the risk of patchy whitening, which is great, as I did find it difficult to apply the gel evenly when using the syringes to dispense it into the mouthpiece. On the whole, I found the whole process incredibly easy. The automatic shut-off after 15 minutes also meant that I didn’t have to keep checking the time and could mooch around the house while wearing it. A colleague of mine also trialled the set and saw results within just six days. FOREO issa Teeth Whitening Set, £84.90 £59.43 with code SUN2026 FOREO states that the system can deliver results of up to 10 shades whiter in six days when used for 15 minutes each day. My teeth were already in pretty good condition thanks to other at-home treatments, but I wanted to take the whiteness one step further and found that my teeth went from shade six to shade two. The Verdict: Is the FOREO issa Teeth Whitening Set worth it? Overall, the FOREO issa Teeth Whitening Set is a brilliant way to whiten teeth at home. It’s peroxide-free gel, pain-free, convenient and super easy – but more so than all of this, it actually works. If you’re going to invest in any beauty tech this year, this teeth whitener is definitely one to consider. FOREO issa Teeth Whitening Set, £84.90 £59.43 with code SUN2026 – buy here Code expires September 1st 2026 Comment now