The secret to human rights lawyer Amal Clooney’s glossy tresses has been revealed. It is none other than celeb hairstylist Serge Normant. She was spotted entering John Frieda salon in Chelsea, London for a haircut from Normant on Thursday. The British-Lebanese barrister reportedly spent $600 on her haircut.

“Everyone in the salon noticed her. But they all played it cool,” an eyewitness told Page Six. The insider told that the attorney was low-key and just had a Mercedes waiting outside for her. It is thought that Amal’s glossy tresses are perhaps only rivalled by the locks of Kate Middleton, Duchess of Cambridge. The style icon is known for her love of expensive haircuts and her signature bouncy blowouts.

Her haircut was reported to have cost a hefty $600. According to Page Six, Normant is the “secret to her always-perfect-looking hair.” The hairstylist also has fans in the likes of A-listers including Julia Roberts, Gisele Bundchen, Sarah Jessica Parker and Sofia Vergara.

Amal is known also for her impeccable sense of style. The lawyer reportedly never repeats a dress, and her designer outfits mostly consist of European luxury ready-to-wear along with vintage and couture labels. Before her marriage to George Clooney, her go-to designer for work was French brand Paule Ka, and she enhanced her official look by carrying Alice+Olivia bags.

Earlier, a source told US Weekly in April 2015 that the 54-year-old actor had installed a runway, floor-to-ceiling mirrors and a light system in her closet at the couple’s home in Studio City, Los Angeles. The closet houses Amal’s Dior, Oscar de la Renta and Alexander McQueen ensembles. Her actor husband said in an interview in May that his wife had a great taste.

Clooney even joked that they required “another bedroom” at their home for her designer wardrobe. The lawyer’s ensembles contain a playful touch and her sartorial style consists of very feminine and elegant labels like Dolce & Gabbana, Stella McCartney, Giambattista Valli, etc. She stunned this year on the red carpet of the “Hail Caesar” premiere in Hollywood in a floral red and white custom Giambattistta Valli minidress, while for the Berlin Film Festival premiere of her husband’s film she opted for a show-stopping vintage confection by Yves Saint Laurent by William Closet.