Does working with children keep you young?

The Advertising Standards Authority has received nine complaints about the commercial, commissioned by England's Teacher Training Agency.

If the ASA upholds them, the "skin cream" advertisement could be stopped.

The TTA said the response to its latest campaign had been positive, with the number of recruits increasing.

'Ludicrous'

The ASA said the complainants, some of whom claimed to be teachers, had objected on the grounds that it was misleading.

Some believed it had failed to illustrate how demanding teaching was, with one saying the reverse of the "anti-ageing" claim was true.

Another believed there was no scientific evidence to back it up and believed the TTA was being "ludicrous".

An ASA spokesman said: "We are looking into the complaints made but are at an early stage in the process."

A TTA spokesman said the organisation had only received two letters of complaint since the �12m campaign - featuring the slogan "Use your head: teach" - began last September.

The five adverts all depict real teachers and pupils in classrooms and were "trialled extensively" among existing staff and trainees before being aired, he added.

Last November, the TTA announced that more people were training to become teachers than at any time in 29 years.

Some 34,400 began courses in 2004 - with another 7,000 learning on the job.

The inquiries by those eligible to study so far this year are up 13.5% on the same period last year, the TTA said.