Actress Jennifer Aniston is reportedly worried that her luscious locks are getting thinner. She fears she will soon go bald.

`She's been getting scalp stimulant treatment a few times a week and has started taking prenatal vitamins in the hope they'll restore her hair growth,` showbizspy.com quoted a source as saying.

`Several friends have joked that Jennifer better watch out or she'll end up resembling her (now deceased) godfather Telly Savalas who (has been) bald most of his adult life,` the source added.

Meanwhile, Aniston and her friend Courteney Cox are fighting over Botox.

Aniston has come out publicly as not being a fan of the injectable, while Cox who turns 50 June 15, has been looking like she can't get enough of it.