Is Retinol Really Effective for Skin Rejuvenation?

With so much hype and misinformation associated with the marketing of anti-aging skin care products, it can be difficult to determine what actually works for improving the texture and appearance of aging skin. One skin care ingredient that’s been promoted heavily for skin rejuvenation is retinol. Is there truth behind the widely claimed benefits of usin retinol for skin rejuvenation?

Retinol is a purified form of vitamin A which is thought to stimulate collagen product when applied directly to the skin. It does this by stimulating skin fibroblasts, the cells that produce collagen, and by inhibiting the action of enzymes that promote breakdown of the skin’s collagen support structure.

The limiting factor with many skin care products that advertise that they promote collagen production is that the molecules are unable to penetrate deeply enough to gain access to the dermis where the fibroblasts are located. Hence, they’re unable to stimulate collagen synthesis despite their advertising claims. This where the retinol molecule is different. It has the ability to penetrate the outer layer of the skin, the epidermis, and gain access to the inner dermis where it can stimulate the fibroblasts to produce more collagen.

The ability to gain access to the dermis and stimulate collagen production gives retinol the ability to improve the appearance of lines and wrinkles as well as counteract some of the skin damage created by years of sun exposure. Retinol also increases the thickness of the outer skin layer, the epidermis. This results in a skin with a finer, more translucent texture as well as a reduction in skin roughness.

Do studies confirm that retinol works to improve the appearance of aging skin? A study performed on 31 subjects to test the effects of retinol on skin texture and appearance. The individuals had a 0.4% retinol solution applied to one arm and a placebo to the other. Not only did the arm that received the retinol show improvement in skin roughness and texture, but a skin biopsy revealed an increase in the precursors of collagen synthesis, suggesting that collagen production was being stimulated. In addition, retinol has been used by dermatologists and physicians for many years as an anti-aging cream with good results.

It appears that retinol is effective both in improving the texture of the skin as well as reducing the appearance of fine lines. By stimulating collagen production, it may also compensate for some of the solar damage accrued over the years. Although you can buy dilute retinol formulations over the counter, they may not have the same benefit as prescription formulations available from your doctor. Because prescription strict retinol in the form of Retin-A and its derivatives may be too irritating for some people’s skin, it may be prudent to start with a lower strength, non-prescription formulation and advance to the prescription form if results aren’t achieved. Remember to always wear a sunblock when using retinol since it increases sensitivity to the sun.

The Remarkable Anti-Aging Effects of Green Tea

It seems there’s more interest than ever in finding safe, natural ways to slow down the aging process. One inexpensive, natural food that appears to offset some of the effects of aging is green tea. Studies have shown that this remarkable, anti-aging drink may have a variety of benefits to the aging body through the effects of catechins, the active components found naturally in green tea. Here are some of the many anti-aging effects of green tea that are currently being studied:

Prevention of Alzheimer’s Disease

In animal studies, the catechins found in green tea have been shown in various studies to protect nerve cells from cell death. Based on these results, it’s thought that the catechins found in green tea may help to reduce the risk of degenerative diseases of the nervous system such as the Alzheimer’s. Green tea catechins have also been shown to improve the behavior of mice afflicted with dementia. The healthy chemicals in green tea may not only help to prevent Alzheimer’s, it may also reduce the risk of another relatively common neurological disease, Parkinson’s disease. Both Alzheimer’s and Parkinson’s disease are characterized by the presence of amyloid plaques in the brain and central nervous system. A particular catechin found in green tea known as EGCG has been shown to help prevent the formation of amyloid plaques in mice. Whether this holds true in human and whether green tea catechins can reverse amyloid plaques once they’ve formed is still in question.

Skin aging

The polyphenols found in green tea are strong anti-oxidants which have been shown to counteract free radical formation in the body. Not only do the polyphenols in green tea exert their anti-oxidant properties when taken internally, they can also reduce skin related free radical damage when applied to the skin. Studies have recently confirmed that application of a topical green tea extract protects against skin damage related to ultraviolet radiation from the sun. Although topical green tea extract shouldn’t take the place of your regular sunscreen, it may provide an additional level of protection that goes beyond standard, commercial sunscreens on the market. Because of green tea’s potential anti-aging skin effects, more and more cosmetic products are coming on the market that contain green tea extract. You can probably find one of these products at your drugstore or local cosmetic counter.

Chronic disease of aging

Green tea catechins may also protect against many of the common, chronic diseases associated with aging including certain types of cancer, heart disease, stroke, and even osteoporosis. Although results look promising, most of these studies have been observational and there’s no conclusive evidence that green tea can prevent or reverse these diseases. But with preliminary data looking so promising, why not add more green tea to your diet both for the taste and the potential health benefits?

Green tea seems to hold a great deal of promise in the world of anti-aging medicine. It’s a drink you can enjoy without guilt, knowing that you’re looking doing something quite healthy, and possibly protecting your body against the ravages of aging.