Black Friday Teeth Whitening Deals 2025

Nothing says “confidence” quite like a big, light-up-the-room, genuine smile – the kind that comes from the peace of mind that you’ve taken care of your teeth. For many of us, our daily coffee habit or a red wine with dinner can stain our teeth over time.

It’s no wonder “teeth whitening” is one of the most searched-for beauty and dental treatments in the UK. But with shelves full of whitening strips and whitening toothpastes, it can be hard to separate clever marketing from what actually works. This article is your straightforward guide to teeth whitening, and how to choose the best product for your smile.

Professional whitening: fast, safe, effective (and 20% off)

If you want professionally whitened teeth, your dentist is the gold standard. Treatments can involve bleaching gels, sometimes paired with a laser to accelerate results. Professional teeth whitening in the UK typically costs anywhere from £300 to £800, depending on the method and the clinic.

The pros? It’s fast, safe and the results can last from six months to two years with proper aftercare. Dentists can also tailor the treatment so sensitivity is kept to the bare minimum. The only catch is the cost; it isn’t the cheapest option, but it does grant you results that last. That’s what makes professional whitening the best investment.

Some clinics even prescribe take-home kits using professional-grade prescription gels. These offer much of the same reliability but allow you to whiten from the comfort of your own home. It might also be worth noting that teeth whitening on the NHS isn’t usually subsided, as it’s considered a cosmetic treatment and that’s why so many people go private.

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At-home teeth whitening: do the strips really work?

From teeth whitening strips to teeth bleaching kits, the market is booming right now. Some of these products do work, as long as they contain carbamide peroxide, which is the same active ingredient dentists use.

Whitening strips, in particular, have become a go-to for instant teeth whitening at home. They’re convenient, relatively affordable and can lift teeth by a shade or two if used often enough. Whitening toothpastes are great for polishing away surface stains, but they aren't strong enough to change the underlying colour.

You do have to be careful with these unregulated whitening strips and at-home kits, because some can be abrasive and cause gum irritation or erode your enamel. To be on the safe side, look for kits that are prescription-only.

For example, gels with 16% carbamide peroxide are proven to deliver lasting results – up to a whole year! – without compromising your enamel. Used consistently for one to four weeks (depending on how natural or dazzling white you’d like your smile), these kits can rival in-clinic treatments at a fraction of the price.

Many dentists recommend prescription gels as the best at-home teeth whitening option, thanks to their proven safety and long-lasting results.

Fun fact: studies show that desensitising toothpastes are effective for reducing tooth sensitivity from home teeth bleaching with high concentration (10%-16%) carbamide peroxide.

Can you really whiten your teeth at home in minutes?

While natural teeth whitening remedies like baking soda or lemon juice are popular online, dentists warn they do more harm than good. True whitening takes time, whether it’s with prescription-grade gels or professional sessions. That said, there are some tricks that can make your teeth appear whiter, instantly…

Lip colours with blue undertones can make teeth appear whiter straight away, whether it’s a simple tinted balm or a bold lipstick, it’ll have an effect. It’s also a good idea to avoid stain-heavy foods and drinks, such as curry (turmeric, we’re looking at you), coffee (the classic culprit) and red wine (another heavy-hitter). Again, if you’re looking for a true colour change, there’s no safe way to get white teeth in minutes at home.

What’s the best whitening products for teeth?

If you’re wondering what the best whitening for teeth actually looks like, the answer really does depend on your lifestyle, budget and how dramatic a change you’re after.

• For quick, noticeable results (and if you don’t mind the pricey investment), professional teeth whitening at the dentist office is the most reliable option.
• If convenience and a gradual shade lift is what you’re after, dentist-prescribed, at-home kits with 16% carbamide peroxide are a smart choice.
• And if you’re hoping to prolong your results, switching to a whitening toothpaste is always a good idea.

Tip: protecting your enamel will also help preserve the brightness (not to mention the health) of your teeth. So, don’t forget to floss daily, brush gently and alternate between a desensitising or enamel-protecting toothpaste.

Whichever you choose, it’s worth consulting your dentist before starting, especially if you have sensitive teeth or have existing dental work scheduled. After all, whitening your teeth is about feeling confident, not compromising your oral health.