How Skin Changes Over Time
Aging skin is a gradual, natural process shaped by both genetics and environmental factors. Sun exposure, pollution, and other environmental factors can affect the skin over time, contributing to changes such as thinner skin, fine and deeper lines, uneven tone, and changes in texture. Lifestyle factors, including diet, physical activity, caffeine intake, and smoking, are also associated with how skin changes as we age.
Why Facial Anatomy Matters
Understanding facial anatomy, facial features, and facial landmarks is a foundational part of planning any facial esthetic treatment safely. The face is made up of multiple layers, including skin, connective tissue, subcutaneous fat, muscles, ligaments, and underlying bone, along with a network of arteries, veins, and nerves running through them.
A clinician’s understanding of these structures supports safe, informed treatment planning as part of personalized aesthetic care. Interest in refreshed, natural-looking aesthetic care has grown over time, and treatment has become more accessible to more people than it once was.
Age-Related Changes in Facial Structure
Facial volume and features change gradually, and the pattern of change is often specific to certain areas of the face. Many people experience a gradual loss of soft tissue in the upper midface, along with a downward shift of the fat beneath the cheeks over time. The rate and pattern of these changes vary from person to person based on genetics, environment, sex, and ethnicity.
Subcutaneous Fat and Connective Tissue
The subcutaneous fat within the face’s connective tissue acts as a cushioning layer for facial soft tissue. It helps protect the face from external injury and supports a steady supply of fluids and nutrients to facial tissue. Areas with higher concentrations of this fat, such as the cheeks, nasolabial folds, glabella, and jaw-chin region, tend to be well defined. This layer can thin with age, in part due to reduced blood flow, and areas with naturally thinner fat layers, like the temples, forehead, and skin around the eyes and mouth, tend to show early signs of change.
Blood Supply
A complex network of blood vessels runs throughout the face. The skin’s outer layers receive blood supply through fine capillaries that allow nutrients to reach all layers of tissue. A thorough understanding of where the major facial blood vessels are located is an important part of safely planning any facial injection, helping the treating clinician avoid the complications that can occur with intravascular injections, most commonly reported with filler treatments.
Innervation
The face’s sensory innervation comes primarily from two sources, the trigeminal nerve and the facial nerve. The trigeminal nerve divides into three branches. The V1 ophthalmic nerve exits through the supraorbital foramen and fissure and supplies sensation to the upper face. The V2 maxillary nerve exits the infraorbital foramen and supplies the midface. The V3 mandibular nerve supplies the mandibular and temporal regions.
