Dorchester Collection properties is refreshing the spa, wellness and fitness offerings across its hotel portfolio.

Hotel Principe di Savoia in Milan, Italy is among eight of the groups hotels to undergo a revamp. As part of the new wellness offer, the hotel's spa now has a range of anti-ageing spa and beauty treatments, including the "Algae Body" an intensive treatment for fluid retention and cellulite. Other treatments on offer are the facial "lifting" treatment and the Kanebo facial "sensai beauty".

The spa facilities at Dorchester Spa Valmont pour Le Meurice in Paris, France are also being refreshed. Now on offer is a limited edition Bulle Emotionnelle, a revitalising facial protocol that focuses on restoring the skin's natural glow through massage and Vamony's renewing pack.

At the Dorchester Spa London, a series of new treatments by Carol Joy London have been added.

The treatments include the innovative Diamond Facial with Oxygen and the "For Your Eyes Only" treatment.

Spa facilities have also been refreshed at Hotel Plaza Athenee, Paris; 45 Park Lane, London; Coworth Park Ascot; the Beverly Hills Hotel and Hotel Bel-Air in Los Angeleles; and Le Richemond in Switzerland.

Dorchester Collection launched in 2006 and is the successor to the Dorchester Group, originally established in 1996 to manage a portfolio of some of the world's foremost luxury hotels in Europe and the US.

As part of the group's new strategy, chief executive Christopher Cowdray has set out the company's goal to have between 15-20 hotels by 2015.