DIY tooth whitening kits can be dangerous

Consumers in Britain are being warned that some DIY tooth whitening kits can be dangerous.

According to the Trading Standards Institute (TSI) tests carried out on kits sold over the counter from pharmacists or beauty shops and the internet have been found to contain illegally high levels of the bleaching agent hydrogen peroxide.

The TSI say hydrogen peroxide levels were higher than the legal limit in 18 out of 20 DIY products tested and in one case the legal limit was exceeded by a factor of 230 times.

Only two complied with the Cosmetic Products (Safety) Regulations, which ban the sale or use of teeth whitening products that contain more than 0.1% hydrogen peroxide.

People desirous of a movie star array of white teeth, which is considered more attractive, are resorting more often to such DIY kits to achieve the effect at home at a fraction of the cost of a professional job by a dentist.

Often the treatment is used repeatedly to achieve the desired effect.

The TSI however recommends that anyone considering having their teeth whitened cosmetically consult a qualified dentist as the hydrogen peroxide in the kits can aggravate gum disease and cause sensitive teeth and even chemical burns to the mouth.

Hydrogen peroxide commonly used as a hair dye.

The TSI points out that their tests were carried out on teeth whitening kits and are not suggesting there is a problem with the whitening toothpastes or polishes that are also on the market.

The two that passed the test were Boots Expert Teeth Whitening Programme and the 'Brilliant' tooth whitening system, distributed in the UK by Brilliant Products, of Staines, Middlesex.

The manufacturers and suppliers of all the items that did not comply with the 0.1% limit are now being contacted and advised to withdraw the products from sale and the possibility of further action is being investigated.

The British Dental Association (BDA) says it is important any patient considering having their teeth whitened consults their dentist, who will examine their mouth properly, take a full medical history and discuss treatment options.

The BDA is currently involved in discussions to amend the EU Cosmetics Directive that will define the strength of products available to the public and remove restrictions on qualified dental practitioners using products of a higher strength.