General Skin Knowledge
Human skin is composed of 3 layers of tissues: the outer layer is called epidermis, the second layer dermis and the inner subcutaneous fat. For bright and young looking skin, health and integrity need to be established on all three layers. The inner layer plays the most important role in tightening the skin. If the foundation is not firm the skin will sag, creating lines and wrinkles in the cheeks, mouth, jaw line and under the chin.