Relaxation massage is essentially the same as a gentle swedish massage that uses smooth, gliding strokes. The primary purpose will be to help you relax, and the massage therapist will probably move at a slower pace and use light pressure.
During a relaxation massage there is less emphasis on working out serious adhesions or knots in the muscle tissue and the therapist won't push your pain limits in order to get the muscle to release. Sometimes people even fall asleep during a relaxation massage.
There are still substantial health benefits to a relaxation massage, including calming the nervous system, promoting a sense of well-being, improving blood circulation and stimulating the body's lymphatic system, which carries away waste products.