Anti-Aging Benefits of Green Tea
April 20, 2010 by admin · Leave a Comment
What is Tea?
Tea is the common name for the Camellia sinensis plant. It is the agricultural product of the leaves, leaf buds, and internodes (the portion of a plant stem between nodes) of the plant that are prepared and cured by various methods. “Tea” also refers to the aromatic beverage prepared from the cured leaves by combination with hot or boiling water.
Tea is known for its stimulant qualities largely attributed to caffeine. Today, herbal teas are known to have many health benefits, preventing a variety of conditions, from heart disease and cancer, to gum disease, skin aging and weight loss. The major types of tea include black, green, oolong and white, differing by the method of harvesting and processing.
The beneficial properties of tea are attributed to polyphenols. The polyphenols found in tea mainly belong to the subtype called catechins. Polyphenols or catechins are better known as antioxidants that fight free radicals. Free radicals are damaging to skin and body by attacking healthy cells. Green tea has more catechins than black tea; white tea is almost as rich in catechins as green tea but is different in composition and less well studied.
So How Is Green Tea Good For My Skin?
There have been number studies of skin benefits of green tea. One of these studies show protection from skin cancer by demonstrating topical green tea formulations can reduce sun damage.(1) Another fascinating study in 2003 was conducted by Dr. Stephen Hsu of the Medical College of Georgia Department of Oral Biology. His findings determined green tea was able to rejuvenate old skin cells at the end of their life cycle.
A quote from Dr. Hsu’s paper explained, “…we report here for the first time, that at certain concentrations, EGCG or a mixture of the major green tea polyphenols stimulated aged keratinocytes to generate biological energy and to synthesize DNA, possibly for renewed cell division.
Therefore, green tea constituents may be useful topically for promoting skin regeneration, wound healing, or treatment of certain epithelial conditions such as aphthous ulcers, psoriasis, rosacea, and actinic keratoses.” (2) Dr. Hsu went on to comment he was “so surprised” to discover EGCG actually reactivated cells that had migrated toward the surface of the skin to ‘die’.
Green tea appears to manipulate sun damage protection by fighting free radicals and reducing inflammation rather than by blocking UV rays. Therefore, green tea enhances sun protection when used in addition to a sunscreen. To boost sun protection, apply a green tea formula under your sunscreen to elevate the level of sun protection. It is best to combine green tea with zinc oxide-based sunscreens because zinc oxide is chemically inert and should not react with green tea (which some chemical sunscreens might do, especially in sunlight). You can also look for green tea in natural soaps, and other facial cleansers.
Topical green tea is also very beneficial for sensitive skin types by reducing inflammation and irritation in the skin. Wrinkles, skin sag and other signs of aging have been shown to benefit from Green tea. The tea’s antioxidant and anti-inflammatory polyphenols slow down signs of premature of aging
Use green tea at home to boost your skins health, appearance and reduce signs of aging by freezing freshly brewed green tea as ice cubes and use them as a toner. Let them start thawing first before applying directly to the face to avoid irritation. You can also drink green tea or take green tea extract in capsules to benefit from the anti oxidant properties. The polyphenols will reach your skin via the bloodstream in sufficient amounts.
Using green tea in your skincare routine has definite proven benefits to slow skin aging, reduce acne and protect your skin from cancer among many others. Just be aware of the products you choose. Like most antioxidants, green tea polyphenols are oxidized and can lose their active constituents when exposed to air.
By Tiffany Oney and Rachelle Dupree
References:
(1) Green Tea Polyphenol Treatment to Human Skin Prevents Formation of Ultraviolet Light B-induced Pyrimidine Dimers in DNA (2000). Santosh K. Katiyar, Anaibelith Perez and Hasan Mukhtar. Clinical Cancer Research Vol. 6, 3864-3869, October 2000.
(2) Green Tea Polyphenols Induce Differentiation and Proliferation in Epidermal Keratinocytes (2003). Stephen Hsu, Wendy B. Bollag, Jill Lewis, Qin Huang,Baldev Singh, Mohamed Sharawy, Tetsuya Yamamoto, and George Schuster. Journal of Pharmacology And Experimental Therapeutics. First published on March 27, 2003; DOI: 10.1124/jpet.103.049734
Using Green Tea & Zinc to Slow Aging
August 12, 2009 by admin · 2 Comments
The popularity of green tea in the skincare industry has skyrocketed over the last decade. It’s more than just a fad, as the benefits of green tea are well documented due to extensive research. Tea was used in ancient times as a natural stimulant, since it contains caffeine. Today, people drink green tea as a natural way to promote overall good health, but it is especially popular in the skincare industry, where it is a key component in the efforts to slow down the signs of aging.
Green tea contains high amounts of polyphenols, which protects the skin from damage caused by free radicals and other harmful toxins. Compared to black and white tea, green tea contains the highest amount of polyphenol, and contains anti-inflammatory, antioxidant, and anticarcinogenic properties. Its anti-inflammatory nature makes it a versatile herbal ingredient used to fight acne. The antioxidant qualities help prevent premature signs of aging, and the anticarcinogenic characteristics are a major component in the efforts to find a cure for cancer.
The anti-inflammatory properties of green tea make it an effective herbal treatment against symptoms of acne. A 2003 study carried out by Dr. Jennifer Gan-Wong of Memorial Medical Center in the Philippines suggest that green tea cream is just as effective as benzoyl peroxide cream, but does not expose the skin to harsh chemicals and preservatives, according to skincell.org. It also helps detoxify the body and reduces skin inflammation, which decreases the occurrences of outbreaks.
Green tea is also indispensible as an anti-oxidant because it contains high amounts of catechins, a substance that fights against free radicals, which are harmful to cells and tissues. Catechin is especially effective in neutralizing free radicals caused by excessive exposure to UV rays.
Although green tea extracts alone cannot replace the protection provided by sunscreen, it can enhance sunscreen’s effectiveness. Simply add green tea extract to zinc oxide products, such as Vivoderm’s Zinc Cream. Using zinc oxide cream instead of a store-bought sunscreen product is recommended because zinc will not react to the green tea extracts.
Anti-oxidants found in green tea help delay the skin cell aging process and heal stressed skin. Green tea promotes healthy skin by rejuvenating skin cells and reviving the skin growth cycle. The skin is produced in the deepest of three layers, and as it ages, it moves closer to the surface, where it can develop wrinkles and fine lines. An article published in the Natural Food Merchandiser magazine states that research done by Dr. Stephen Hsu, a professor at Medical College of Georgia suggests that green tea can accelerate the skin cell production process.
Whether as an ingredient in your natural skincare products or added to your zinc oxide cream, the health benefits of green tea are plenty.
Van Le is a staff writer for the CSU Daily Titan and writing intern for Vivoderm Laboratories in Los Angeles, California. She is currently pursuing a Journalism degree at California State University, Fullerton.
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