Many people dream of having a brighter, whiter smile — but it’s completely normal to wonder whether teeth whitening is actually safe. The good news is that professional teeth whitening is safe when performed correctly and under the guidance of a qualified dental professional. As with any dental treatment, safety depends on who carries it out and the products being used.

In the UK, there are clear legal rules surrounding whitening. Only registered dental professionals — dentists, dental hygienists, or dental therapists — are allowed to provide teeth whitening treatments. This protects patients from unsafe products and poorly supervised procedures. When whitening is done correctly, using regulated gels in custom-fit trays, it is gentle, effective, and backed by scientific evidence.

Unfortunately, whitening performed outside of dental settings, such as at beauty salons, spas, or by unlicensed individuals, can be extremely risky. Many online or non-dental whitening kits contain illegal levels of hydrogen peroxide, which can cause chemical burns, severe tooth sensitivity, gum damage, or long-term harm to the enamel. Patients may also be unaware of underlying issues that make whitening unsafe — something a non-dental provider cannot diagnose.

There are also situations where professional whitening is not recommended or legally allowed. Teeth whitening cannot be provided to anyone under the age of 18, unless there is a specific clinical need. It should also be avoided during pregnancy or breastfeeding, as a precautionary measure. In addition, whitening is unsafe if a patient has untreated dental problems, such as decay, gum disease, exposed roots, or cracks in the enamel. This is why your dentist will always carry out a thorough assessment first to ensure your mouth is healthy before starting treatment.

If you’re considering brightening your smile, the message is simple: the only legal and safe way to whiten your teeth in the UK is through a registered dental professional. With proper assessment, customised treatment, and ongoing support, professional whitening offers predictable, long-lasting, and safe results.

To find out whether teeth whitening is suitable for you or to book a consultation, speak to your dental team — they’ll guide you safely every step of the way.

At Dental Rooms,Wimbledon Village, we offer complimentary whitening consultation for you to come and have a chat & assessment with our experienced dentists and decide the best options for you.