Botox is the standard treatment sought by men, although one clinic, which offers "boob jab" injections of a dermal filler gel to make women's breasts "look fuller and softer, instantly" says this treatment is also suitable for men.
"For men it could mean defining those chest muscles that many hours at the gym are unlikely to fully achieve!" Clinic 42, of Epsom, says on its website.
The clinic said yesterday that it had given this treatment, which was relatively new to New Zealand, to a few women, but not men - "they're not brave enough to come in".
Dr Cattin said businessmen were the main group among Botox patients.
"[They] are unhappy with lines that make them look irritable and it alters the way people respond to you. When you're in a management position it's important that your face backs up what you are saying because we tend to read faces rather than question what people are saying.
"The way people respond to us, especially in a position of authority, is very much influenced by what we look like. I wouldn't say it's vanity at all. I would say it's a practical issue reflecting work needs."
She said Botox injections were a straightforward treatment, effective and relatively cheap. A single treatment of frown lines cost $400 and needed to be done three or four times a year - "it works out as a cappuccino a day".