Witch Hazel (Hamamelis virgiana) is one of popular herbs that potentially can help women in rejuvenating their femininity organ and overcome vaginal dryness. It is a plant that rich in specific condensed and hydrolyzable tannins known as gallotannins, such as 6 to 11 galloyl units (gallic acids), isoflavones, flavonol glycosides, hydroxycinnamic acids, procyanidins and catechin. All of these phytochemical contents furthermore were identified have certain therapeutic benefits. Some of those benefits including an ability to constrict the skin and the tissue due to its tannin profile and skin-rejuvenating properties due to its phytoestrogen contents such as isoflavones and flavonol glycosides. In medicine and clinical trials, extract of Witch Hazel are popular in healing damaged skin caused by injuries.
Some clinical studies including a study from the Institute for Chemical and Environmental Research, Spain, showed its ability in maintaining the structure of skin cells and repair damaged skin cells (ref-1), and other studies from Japan or a study archived in 2007 European Journal of Pediatric that shows how an extract of Witch Hazel rejuvenates the tissue in children with skin disorders and injuries (ref: 2,3). Interestingly, the effect of Witch Hazel extract even better than Dexpanthenol which is often prescribed by doctor for damaged skin cells.
Extract of Witch Hazel also have antibacterial, antiviral, hemorrhoid relief, anti-diabetes, varicose veins, and a few other health benefits. A study conducted by researchers from Spain and United States found Witch Hazel can even fight colon cancer cells (ref-4).
Out of these health benefits, Witch Hazel also helpful in the vaginal care. Besides their phytoestrogen content that can rejuvenate the vaginal wall, lips, muscles, and the function of glands and tissue in secreting the fluid, Witch Hazel also can make the vagina tighter shortly due to its astringent properties (ref-5) - an ability to constrict the skin and maintain the composition of skin structure as an effect of tannin content (ref-6). This is a reason why Witch Hazel has been listed in the top list of astringent sources (ref-7) and a 'strong competitor' to Oak Gall which also have strong profiles of tannin and isoflavones (a phyto-estrogen form).
What makes Witch Hazel becomes a strong competitor to Oak Gall, is extract of Witch Hazel also rich in natural phenols. Phenols are small molecules that can speed up the absorption of chemicals mixed with it into cell membranes. That being said, tannins, phytoestrogens, and other phytochemical contents derived from Witch Hazel extract will be 'transported' easily to the epidermis. Thereafter, any effect of those substances will be faster in the process including those on female genital organs (vaginal wall, muscles, glans, tissue, and vaginal lips). Recent studies investigate the mechanism of phenols archived in the Analytical and Bioanalytical Chemistry, 2011 Aug;401(2):677-88 by German researchers.
With all those benefits, it's not surprised when extract of this herbs becomes popular as main ingredient of female products, especially to female genital organs as aging and childbirth can make the vaginal wall thin making its elasticity declines, thin of vaginal muscle mass making its contraction becomes weak, and decline in ability to secrete the fluid by vaginal glands resulting frequent dryness which is not only causing vaginal dryness and painful sex, but also inhibits regeneration skin cells process and maintaining its elasticity.
You can see some natural products that use this herbs as their main ingredient on this page, including other ways to obtain this phytochemical contents from your diets.
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