Hot stone massage is a specialty massage that uses smooth, heated stones. They are often basalt, a black volcanic rock that absorbs and retains heat well. It is a deeply soothing, relaxing form of massage. The heat helps tight muscles release.

What is Hot Stone Massage?
Hot stone massage is a specialty massage that uses smooth, heated stones. They are often basalt, a black volcanic rock that absorbs and retains heat well, but they can be other types. The heat is both deeply relaxing and helps tight muscles release.

What Happens During a Hot Stone Massage?
Before you arrive, the massage therapist sanitizes the stones and heats them in 120 to 150 degree water. During the massage, the therapist warms up the body with traditional Swedish massage, then massages you while holding a heated stone. As the stone cools, the therapist replaces it with another. The therapist might also leave heated stones in specific points along your spine, in the palms of your hand, on your belly, or even between your toes to improve the flow of energy in your body. If you have inflammation or muscle injury, cold stones are sometimes used.

Content Source: About.com