The complainant said the advertisement made several unsubstantiated therapeutic claims and raised concerns about the advice on the website.
On learning of the complaint, the advertiser, Mama Pukeko amended or removed the claims and said it had never been its intention to mislead.
"As far as I know there have been no scientific studies on amber use for teething and/or pain, and the complainant acknowledges this himself on his own website," the advertiser said.
"So while it has not been proven, it has also not been disproven. Just because something is unproven yet does not mean it may not be in the future."
The authority was satisfied with the response and the matter was settled with no further action being taken.
The authority also upheld a complaint about an advertisement on the Pulse Solutions website, which promoted accelerated healing for animals by using magnetic coils that pulsated at various frequencies.
The advertisement claimed Pulsed Electro-Magnetic Field Therapy "is the most advanced and effective treatment of soft tissue injuries, arthritis, fractures and degenerative diseases".
The authority determined that the advertisement was likely to deceive or mislead the consumer and, as such, had not been prepared with a due sense of social responsibility.
It also upheld a complaint about an advertisement on the Harmonic Healer website, which made numerous claims about the ability of a "harmonic frequency generator".
The advertisement claimed the device had success "in healing cancer, arthritis, asthma, alzheimers, emphysema, depression ... and most things."
The complainant said the claims were false and could cause great harm to some people who may choose to rely on Harmonic Healing instead of medical treatment.
The authority said the advertiser had been unable to substantiate any of its claims.
