BOCA RATON, Fla. -

Beyonce, Paris Hilton, Jennifer Aniston, and Nicole Kidman are just a few of the famous women who have worn hair extensions.

Claeana Mannino, a hair stylist at Wild Hare Salon & Spa in Boca Raton, said the list can go on and on.

"They may not kiss and tell and we may not realize it, but they definitely do," said Mannino.

Karen Cirullo started receiving hair extensions when her hair began thinning.

"It's one thing for a man to go bald at a young age. It's very, very different for a woman," said Cirullo.

A hair loss specialist recommended the Wild Hare Salon & Spa, where Mannino is working with newer and safer extensions.

"What might work for you might not work for me, so it's always good to get different opinions," said Mannino.

Mannino works with two different systems. One is known as a loop and lock, which attaches to the hair with a silicone lined metal bead.

"You loop the hair through and you lock it shut with a tool," said Mannino.

Clients must return to the salon every four to six weeks to have the extensions moved up on their hair.

Mannino also works with an adhesive system called seamless, which doesn't use heat in the application or solvents to remove the extensions.

"If you use an oil based project, it's going to break up that adhesive instantly with no damage, no tension on the hair. It would slide right out," said Mannino.

Cirullo takes a break from her extensions a few weeks each year but said she will never be without them.

"I've been doing this now for almost two years, so I love them. I love them," said Cirullo.

With proper care, hair extensions can lost from four to six months before being replaced. Stylists recommend using sulfate-free products, limiting excessive heat styling, and protecting hair from sun, chlorine, and salt water to help extensions last.