Want a free hair styling experience? You have the opportunity to secure one of a limited number of free hair styling sessions at Salon X in Soho, London. Get ready to discover the secret to radiant, glossy hair that shines like never before as TRESemme hair stylists take you through a 4-step process which includes shampoo, conditioner, serum and oil, before finishing with a blow-dry and style of your choice.…