As per European Council guidelines, only a certified dental professional can lawfully give tooth whitening products utilizing 0.1–6% hydrogen peroxide, provided the patient is 18 years of age or older. In 2010, the UK General Dental Council became concerned of the "risk to patient safety from poor quality tooth whitening being carried out by untrained or poorly trained staff." A public attitudes survey, conducted by the GDC, showed that 83% of people support "policies of regulating tooth whitening to protect patient safety and prosecuting illegal practice." A group of dental professionals and associations called The Tooth Whitening Information Group (TWIG) was founded to advance protected and beneficial tooth whitening information and assistance to the general population. Reports can be made to the TWIG through their website with respect to any individual giving unlawful tooth whitening services, or if an individual has personally undergone treatment done by a non-dental professional.