When we were invited last summer to meet French hairstylist John Nollet in his newly opened salon at the Park Hyatt Paris-Vendôme, we expected to see a large, busy space with assistants bustling, blow-dryers whirring and scissors snipping. Instead, the concierge escorted us to Suite 101, with its nondescript door, around the corner from the elevators. It was hard not to notice that Nollet’s atelier is perfectly located for quick and discreet arrivals and departures by his French celebrity clientele, like singer Vanessa Paradis and La Vie en Rose’s Marion Cotillard. Inside, the small yet chicly decorated room with gold walls has French doors that open onto a long terrace overlooking the hotel’s garden courtyard. In 2009, the Park Hyatt hired Nollet to bring his styling services to 11 of its properties around the world. From Tokyo to Buenos Aires to London, he appeared at guests’ doors with his elaborate, custom-built Louis Vuitton trunk containing the tools of his trade to cut and color their coifs. The yearlong tour was such a success that the Park Hyatt Paris-Vendôme invited Nollet to permanently set up his Hair Room Service by John Nollet in its hotel. Guests can still arrange appointments in their rooms, but the privacy and charm of the personal service with Nollet in Suite 101 is a Parisian pas de deux worth experiencing. From $950 a session; paris.vendome.hyatt.com.