Suzan Obagi, assistant professor in dermatology at the University of Pittsburgh and director of the Cosmetic Surgery and Skin Health Center, explains.
Normal healthy skin has a nice epidermis with a smooth cornified, or outer, layer that acts as a good barrier to water and environmental injury. Skin color and tone is even and unblemished. Components such as collagen (which provides skin firmness), elastin (which supplies skin elasticity and rebound) and glycosaminoglycans or GAGs (which keep the skin hydrated) are all abundant. It is interesting to note that under a microscope a biopsy of a wrinkle exhibits no telltale signs that reveal it to be a wrinkle. So what causes the skin to look wrinkled? It is probably a multi-factorial process of intrinsic aging and extrinsic aging.
Intrinsic aging is the natural aging process that takes place over the years regardless of outside influences. After the age of 20, a person produces about 1 percent less collagen in the skin each year. As a result, the skin becomes thinner and more fragile with age. There is also diminished functioning of the sweat and oil glands, less elastin production, and less GAG formation. Wrinkle formation as a result of intrinsic aging is inevitable, but it will always be slight.
Extrinsic aging occurs in addition to intrinsic aging as a result of sun and environmental damage (tobacco use and exposure to pollution, for example). Extrinsic aging shows up as thickening of the cornified layer, precancerous changes such as lesions called actinic keratosis, skin cancer (including basal cell carcinoma, squamous cell carcinoma, lentigo maligna melanoma), freckle and sun spot formation, and exaggerated loss of collagen, elastin, and GAGs. Alone or in concert, these processes give the skin the appearance of roughness, uneven tone, brown patches, thin skin and deep wrinkles.
Prevention is key to minimizing wrinkles. The most important thing is to take care of your skin before all these changes start to take place. Sun protection against both UVA and UVB rays is critical 365 days a year using an SPF of at least 35: I prefer zinc- or titanium-based products. After the age of 25 I recommend using Retin-A (a vitamin A derivative that uses the generic name tretinoin) as an antiaging cream. It is a prescription agent that has been used for more than 30 years with a safe track record and excellent results. In the first two or three months patients may experience redness, peeling and flaking, but should then noticed a marked improvement. Over time tretinoin improves fine lines, the appearance of pores, precancerous changes, and brown spots. If tretinoin treatment is not enough, then medium depth chemical peels and some non-invasive lasers can help build collagen and thus improve the skin's appearance.
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4 Comments
Add CommentThis is very helpful post to prevent wrinkle. I am agree with you that the Ultra Violet radiations are the big cause not only wrinkles but various other skin factor like skin disorder vitiligo( http://www.antivitiligo.com/ ). How ever some other factor like sufficient quantity of Vit C is also useful for prevention of wrinkles.
Reply | Report Abuse | Link to thisi am 24 years old,& i don't know what kind of creams to use:anti wrinkles or only moisturizing creams?
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Reply | Report Abuse | Link to thisCouldn't have said it better than purity12lover. I'm only 30 years old and I already have a few fine lines around my lips and eyes. No deep wrinkles as of yet, thank goodness, but I really rue the day when I'll wake up and find a wrinkly face in the mirror to meet me in the mornings.
Reply | Report Abuse | Link to thisCurrently trying out a few revitalizing creams and treatments, but if I ever need to bring out the "heavy artillery", I'm probably gonna go to http://www.skinvitality.ca/ for some botox injections. I'd prefer not to, for now, so I'll probably give Retin-A a try as well.