10 best teeth whitening products for a brighter smile

We've tested out plenty of products in our HiSmile reviews, but this is definitely our favourite teeth whitening kit. Formulated by the Hismile Research Centre it's been clinically trialled and tested by dentists. The worry-free 10-minute formula is peroxide-free, using phtalimidoperoxycaproic acid (PAP) instead for no sensitivity and irritation, and contains ingredients to help strengthen, whiten, and protect your teeth by oxidising tooth stains without releasing free radicals. 

Designed to show results in as little as one treatment, 100 per cent of participants in the PAP+ clinical trial achieved instant results whilst 62 per cent said their teeth improved by three shades over the course of the trial. 

Want to know what we thought about some of HiSmile's most popular products? Check out our HiSmile reviews.

Spotlight Oral Care was created by dentist duo, Dr Lisa and Dr Vanessa — so you know they're products that you can trust. This kit includes a combination of whitening toothpaste and teeth whitening strips, so you can get the best results possible. They contain 0.01% hydrogen peroxide, are vegan, cruelty-free and don't create sensitivity. The only slight downfall is that you do have to wear them for an hour a day, however, this also gives us more hope that they work, as cheaper ones usually just require a few minutes.

Whiten your teeth quickly in the comfort of your own home with the dentist-approved Smile Science Harley Street Professional Teeth Whitening Refill Kit. You just pop the gel in your mouth trays and you can sit back and relax or carry on with housework for 20 minutes while it works its magic. In addition to two teeth whitening gels, it also comes with a pre-stain remover to use first, which targets deep-set and surface stains while preparing your teeth for the next step.

Another product from Spotlight Oral Care that we love is their whitening pen, which is designed to work in as little as 20 minutes. Formulated with the ingredient hydrogen peroxide, the easy-apply formula actively dissolves stains for long-lasting results without causing sensitivity or harm to tooth health. Use daily, on the go, or as a top-up after other whitening treatments.

Whitening toothpastes are the easiest and cheapest teeth whitening methods to use at home and there's no doubt you've probably already heard about Pearl Drops. The brand has a number of different whitening toothpastes on the market, but this one promises to make teeth up to four shades whiter in just three weeks using a buffing technique. It contains perlite, used by dentists, and is very affordable, so it's a great investment if you're on a bit of a tighter budget.

Another cult product in the world of teeth whitening strips are these ones from Crest. They are very similar to the Oral-B strips and claim to deliver brighter teeth in as little as three days, and a whiter smile in 20 days. The strips have FlexFit technology so that they can adapt to fit your teeth correctly. There are a variety of options to choose from when purchasing to allow you to try a few strips out before you buy in bulk.

If you're keen for a teeth whitening kit, but have sensitive teeth, then Smile Time could be ideal for you. With over 3000 five star reviews, the brand claims it can turn your whiter teeth up to eight shades whiter in just six 15 minute treatments per day. Like other teeth whitening kits, it's very easy to use and you get six gel treatments in the box. Refill kits afterwards cost £19.99.

Don’t want the hassle of waiting for a solution to work before heading out? The Colgate Max White Overnight Teeth Whitening Pen is designed for overnight use and claims to reverse 15 years of stains from food and drink in just three weeks. The pen has a precise applicator brush and provides 35 nightly treatments. The active ingredient is hydrogen peroxide.

Our tester has sensitive teeth, and some types of toothpaste can even cause mild pain. As such, they are very careful about the dental products they use. Our tester said: "I didn’t feel any discomfort while using this pen, and I love how it works overnight, so you don’t even notice that you’ve got it on." In addition, they found it easy to apply by clicking the pen to dispense the product onto the brush and covering teeth in a thin layer. Our tester used it for over a month and could see improvements, namely a reduced discolouration on their teeth. In conclusion, our tester said: "If you're looking for a product that is going to subtly whiten your teeth over time, this is a great option.”

The Wisdom Intense White Instant Whitening Pen offers a quick and convenient way to whiten teeth. Clinically proven to whiten teeth by up to two shades in just one use, it is a fast and easy way to brighten your smile. The gel, formulated with sodium chlorite, effectively removes stains and is applied with a unique silicone applicator. Use it once for a quick colour boost or daily for five days to achieve maximum whitening results.

Please note that this product is suitable for adults with natural, healthy teeth. It is not suitable for pregnant or breastfeeding women, children, or individuals with gum disease, gingivitis, bleeding, or receding gums.

Billion Dollar Smile Strips are ultra-thin, mint-flavoured strips designed for convenient and effective at-home teeth whitening. Coated with a non-peroxide whitening gel, they provide a safe, mess-free solution for tackling tough stains and brightening your smile. Simply apply the sturdy strips to your upper and lower teeth for 15–30 minutes daily, and in just 14 days, they’re clinically proven to whiten teeth by up to six shades. The fresh mint flavour ensures a pleasant experience while delivering noticeable results.