Teeth Whitening Harley Street

Teeth whitening is a safe and effective way to lighten the natural colour of your teeth using peroxide-based gels. It works by breaking down the molecules that cause staining, allowing them to be gently lifted from the enamel. Whitening doesn’t strip away any of the tooth surface, so it’s a conservative option that keeps your natural teeth intact.

Our at-home system is dentist-supervised, meaning you’ll receive custom-fitted trays and a supply of high-quality whitening gel. The process is designed to work slowly and steadily, giving you full control over the final result.

The active ingredients in whitening gels are hydrogen peroxide or carbamide peroxide. Once applied, they break down into water and oxygen ions. These oxygen ions enter the enamel and target the long-chain stain molecules responsible for yellowing or discolouration. As they break apart, the stain molecules become smaller, less pigmented and eventually colourless.

This reaction is safe, controlled and supported by your own saliva, which helps flush away the broken-down particles. The result is a visibly brighter smile that retains the natural texture and translucency of real teeth.

Dr Cohen uses a precise shade guide to match your current tooth colour and plan the amount of lift needed. Whether you’re going a few shades lighter or seeking a more noticeable improvement, the process is tailored to your goals.

Teeth whitening is suitable for most adults with healthy teeth and gums. It works best on natural teeth that are stained or discoloured due to lifestyle habits such as drinking coffee, tea or red wine, or from smoking.

Patients with fillings, crowns or veneers should note that these materials will not whiten in the same way, but we can advise you on how to balance or update any restorations to match your new shade.

During your consultation, Dr Cohen will assess your oral health, discuss your goals and determine if whitening is the best treatment for you. In some cases, a hygiene clean or dental polish may be recommended beforehand to remove surface stains and improve results.

Not with Dentexcel. One of the biggest concerns people have is ending up with teeth that look too white, too opaque or simply “too much.” At Dentexcel, we avoid this by focusing on subtle enhancements that complement your facial features, skin tone and natural tooth anatomy.

We understand that many people are wary of the overly bright “Hollywood” look, or worse, the “Turkey teeth” effect where aggressive whitening is combined with large, block-like veneers. These treatments often sacrifice natural aesthetics in pursuit of instant change.

Dr Cohen’s whitening approach is calm, controlled and built around your preferences. We aim for believable brightness, not unrealistic perfection.

Your smile will look refreshed, healthier and more youthful, never overdone.

Once your custom whitening trays are ready, you’ll wear them at home overnight or for a few hours each day, depending on your schedule and preference. For most patients, noticeable results appear within the first week, with full treatment lasting two to four weeks.

Because it’s a gradual process, you’re in control every step of the way. If you’re preparing for an event or want to pace it more slowly, we’ll adjust the plan accordingly.

The most common side effect is temporary tooth sensitivity, particularly to cold air or drinks. This usually settles within a few days after treatment. We can provide sensitivity-reducing products and recommend adjustments to your routine to keep you comfortable.

Dr Cohen will always check for underlying issues such as gum recession, enamel thinning or cracks that could increase sensitivity risk. If any concerns are identified, we may delay whitening or recommend alternative solutions.

Results typically last around three years, though this varies depending on diet, oral hygiene and lifestyle. Foods and drinks with strong pigments, as well as smoking, can gradually reintroduce stains. Regular brushing, flossing and occasional top-ups will help maintain your brighter smile long term.

The good news is that once your whitening trays are made, they can be reused for future treatments. We’ll advise you on when to top up and how to keep your smile looking its best.

Dr Cohen has over thirty years’ experience in cosmetic and restorative dentistry. He understands that teeth whitening is not just about shade, but about preserving your identity and building confidence. His method prioritises health, safety and subtlety, ensuring your new smile suits you perfectly and feels completely your own.

At Dentexcel, every treatment is handled by experienced clinicians using premium products and lab-grade materials. No rushed appointments, no shortcuts and no one-size-fits-all approaches. Just considered care with a natural finish.

If you’re thinking about teeth whitening, we’re here to help. Whether it’s your first time or you’re revisiting after a few years, we’ll guide you through the process with professionalism and care.

Call our team on 020 7796 9393 or use the link book your consultation online. Let’s find the shade that brings out your best smile.