How Skin Ages

Dermatologists separate the aging of skin into two distinct types. Intrinsic (internal) aging, which is completely related to genetic factors, and Extrinsic (external) aging, which is caused by environmental factors such as exposure to UV rays.
Intrinsic Aging
Intrinsic aging is the natural aging process that usually begins in the mid-20’s. Your body begins to produce less collagen and elastin, the substance that keeps skin in place, becomes less and less effective. Dead skin is not shed as quickly, and new cells regenerate more slowly.
Your genes are responsible for the level of intrinsic aging your skin will go through. Some people will notice spots and wrinkles long before others. The most common signs of intrinsic aging are:
- Thinner skin
- Saggy skin
- Fine wrinkles
- Spots
Extrinsic Aging
Unlike intrinsic aging, the external factors of extrinsic aging are more or less under your control. These factors work together to prematurely age your skin. They may include:
- Exposure to the sun
- Stress levels
- Medical conditions
- Diet
- Physical activity
- Lifestyle choices such as smoking or drinking
- Sleeping positions
- Repetitive facial expressions
Prevention & Treatment of Aging Skin
While it’s impossible to completely prevent signs of aging skin, there are many ways to prevent premature extrinsic aging. You’ll find many of these on the Skin Care Tips page. There are also a number of products and treatments available, and scientific research in the field of anti-aging continues to discover more and more options for aging skin.