Former teen model Marco Maranghello had always been handsome. But when he was 25, he began seeing some changes.

“I noticed my forehead was beginning to wrinkle,” says the Upper East Side resident, now 43 and a hairstylist to stars such as Jennifer Lopez.

At the encouragement of an older client, Maranghello booked an appointment for his first Botox consultation at age 25. He’s been going two or three times a year ever since.

“When you’re young, you have a certain look, and it’s hard to let that fade,” says Maranghello, who recently underwent Ultherapy, an FDA-cleared, noninvasive, outpatient procedure that lifts and tightens the neck, chin and brow using ultrasound.

“I am letting some things go with grace — I don’t like to go overboard,” he says. “People cannot tell that I had anything done, so I think that’s the key.”

More guys feel the same, especially in high-power cities such as New York or Los Angeles, where they feel pressure to compete with youthful, energetic men for jobs and career advancement. Many believe looks have a lot to do with that success.