Which treatment involves a mask that forms a hard, rubber-like consistency and increases blood circulation?

Modelage masks are specifically designed to create a hard, rubber-like consistency as they dry. This unique formulation allows the mask to mold and adhere closely to the skin, which can lead to increased blood circulation in the areas covered. The application of heat from the skin combined with the properties of the mask helps stimulate circulation, promoting a refreshed and revitalized appearance.

In contrast, clay masks typically focus on drawing out impurities and absorbing excess oil but do not create the same kind of hard surface. Sheet masks offer hydration and nutrient delivery in a convenient format, while cream masks are designed to provide moisture and nourishment without any hardening effect. Both sheet and cream masks do not have the physical properties that promote the same level of circulation increase as seen with modelage masks.