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Plastic Surgeon Dr. Michele Koo’s Blog | St. Louis | Kansas City » Blog Archive Why Am I Aging? The Science of Facial Aging…Science of Skin Care

Why Am I Aging? The Science of Facial Aging…Science of Skin Care

The Science of Facial Aging.

LATEST CLINICAL INSIGHT

Collagen loss: A primary factor in facial aging.

Degradation of collagen, elastin, and fat impact the structure and volume of the skin; the dermis becomes thinner, less hydrated, and less elastic, causing skin to sag and form lines, wrinkles, and folds.

Lines, wrinkles, and folds—hallmark signs of facial aging—are caused by disruptions in the framework of the dermis, such as collagen loss.

  • Facial aging begins at around 20 years of age, and continues throughout a person’s life.
  • Normal aging decreases collagen production and weakens the dermis’ framework of support, hindering the growth of blood vessels and other vital support structures.
  • Degradation of elastin reduces dermal elasticity, and deficiencies in hyaluronic acid cause a loss of hydration: elastin and hyaluronic acid can no longer bind themselves to collagen scaffolding.
  • Ultraviolet exposure also breaks down and impairs the synthesis of new collagen and decreases the elasticity of the skin.

Degradation of the extracellular matrix in facial aging.

A gradual process.

  • The face does not age overnight—the disruptions in the framework of the dermis described above are an underlying cause of changes in 3-dimensional facial topography that occur over time.
  • In addition, fat is redistributed and/or lost, disrupting smooth contours in many facial areas.
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