The New Zealand Cosmetic Teeth Whitening Association [NZCTWA] is a Ministry Of Health (MOH) recognised Self - Regulating trade group devoted to protecting public safety by ensuring teeth whitening practitioners are professionally trained, Certified and regulated

 It is a non-profit Association

 Dealing with an NZCTWA Registered Teeth Whitening Practitioner displaying NZCTWA Certification is the public assurance that they are dealing with a trained, qualified, and safe Cosmetic Teeth Whitening Practitioner or vendor who takes pride in the quality of their service and care


Cosmetic Teeth Whitening is NOT a Health or Dental Product, Service or Procedure; the sole purpose of Cosmetic Teeth Whitening is for beautification & appearance enhancement

With modern technology Cosmetic Teeth Whitening has become a simple procedure practised globally by both Beauty Industry Aestheticians & Dentists

Teeth Whitening gel was first used to whiten teeth in 1884 and although more than 140 years have passed, there has never been a recorded case of any cosmetic strength teeth whitening gel damaging the structure of a tooth

The globally accepted legal definition of a cosmetic product is:
“Any substance or preparation intended for placing in contact with the various external part of the human body or with the teeth and mucous membranes of the oral cavity with a view exclusively or principally to cleaning them, perfuming them or protecting them in order to keep them in good condition, change their appearance or correct body odours.” (The EU Cosmetics Directive (implemented in the UK by the UK Cosmetic Products (Safety) Regulations 1996)


“There has been avoidable confusion between cosmetic teethwhitening, which whitens the colour of a normal tooth, and tooth bleaching carried out by a dentist to restore a diseased tooth to normal. This confusion has not added to the clarity of debate at European (Union) level.”

Dr Christopher Flower
Cosmetic, Toiletry & Perfumery Association [CTPA) 5-7 John Princes Street


See report – Opinion on Hydrogen Peroxide in Tooth Whitening Products
(Extract) Bleaching effects on teeth and dental restoration materials
The testing revealed no increase in bleach aggression to hard tissues associated with increased hydrogen peroxide concentrations in gels. This included assessments of bleach effects on coronal enamel and dentin, root dentin and common restoratives. Thus, bleaching at concentrations up to 16% hydrogen peroxide produced no effects on ultrastructure, surface morphology or physical properties.

The members of the working group are:
Dr. C. Chambers
Prof. G. Degen
Prof. C. Galli
Prof. J. Krutmann
Prof. J.-P. Marty
Prof. T. Platzek
Dr. S. Rastogi
Prof. J. Revuz
Prof. V. Rogiers
Prof. T. Sanner (Chairman and rapporteur)
Dr. J. van Engelen
Dr. I.R. White

In New Zealand, the NZ Governments Environmental Protection Authority (EPA) (formerly ERMA) has established Public Safety Standards for the Cosmetic Teeth Whitening products suppliers and practitioners of our industry
- see NZCTWA media release and full ERMA Public Safety Rules.
- New Zealand Law


Dealing with a NZCTWA Registered Teeth Whitening Practitioner displaying NZCTWA Registration is your assurance that you’re dealing with a professionally trained, qualified and safe Cosmetic Teeth Whitening Practitioner who takes a pride in the quality of their service and care.

Keeping the Public and Governmental Administrators up to date with our industry Media Releases