JENNIFER ANISTON - ANISTON'S TRUFFLE-TREATED HAIR

The secret behind FRIENDS stunner JENNIFER ANISTON's luscious locks has been explained - she washes her hair with white truffle-laced shampoo.

The screen beauty, wife of Hollywood hunk BRAD PITT, has her flawless mane of hair regularly treated by her stylist CHRIS McMILLAN with ALTERNA PRIVATE RESERVE WHITE TRUFFLE LUXURY shampoo.

But the follicle-comforting product comes at a price - at $78 (GBP52) for a 10-ounce bottle of shampoo and $102 (GBP68) for the same amount of conditioner, the white truffle extract from Italy is, ounce-for-ounce, more expensive than platinum.

Luckily for Aniston, who earns $1 million (GBP650,000) per episode on Friends, Alterna sends her bottles of the exotic potion without any charge.