Biotherm Pure-Fect Skin by Biotherm, 1.69oz Pure Skin Effect Hydrating GelThe freshness and hydration of a moisturizer, the finish of a mattifying powder with 8h shine control. Modern life, stress and an inappropriate diet can upset the balance of our skin: its starts secreting excess sebum and water, which create a "dirty layer" where impurities develop causing an uneven tone, visible pores and shiny skin.