This document provides information about a Vichy salt scrub contrast treatment, which combines three modalities: a Vichy shower with multiple shower heads, a sea salt body scrub, and a hot/cold water contrast therapy. It defines each modality, explains the general rules and protocol for the treatment, and provides a bibliography and glossary of terms. The treatment aims to exfoliate the skin, improve circulation, stimulate the lymphatic and immune systems, and provide a relaxing experience for the client.