There are two types of skin aging that occurs at the same time, intrinsic and extrinsic:
- Intrinsic skin aging is caused by factors within ones body, such as genetics, the body’s overall condition and the normal aging process. This type of aging is normal and affects the skin by slow, irreversible degeneration of tissue.
- Extrinsic or photo aging is due to environmental factors such as sunlight, which causes ultraviolet irradiation damage. Lifestyle habits also increase aging such as smoking, which also damages the skin.
Intrinsic aging occurs in all areas of the skin, whereas photo-aging is cumulative with the normal aging process and occurs only in sun exposure areas—primarily the face, neck and back of hands. Free Radicals are an important factor in skin aging and are caused by sun exposure, they are reactive atoms that damage collagen and cause inflammation. Common signs of damaged skin can include dryness, a tough and leathery texture to the skin, wrinkling and irregular pigmentation.
How is it prevented?
To help prevent pre-mature aging of the skin:
- Starts with proper use of sun protection
- SPF (Sun Protection Factor) must be applied every 2 hours when in direct or indirect sun