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Hyaluronic Acid is found in great quantities in young skin and the synovial fluids of both humans and animals. Unfortunately pollutants and sunlight break down the Hyaluronic acid over time by creating oxy radicals. Studies say that by the age of 50 you will have approximately half the Hyaluronic Acid of childhood.
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Hyaluronic acid and skin: Hyaluronic acid plays a vital role in connective tissues such as the skin. The dermis of the skin comprises a network of collagen fibers within an interstitial substance composed largely of hyaluronic acid. The elastic properties of hyaluronic acid offer resistance to compression, so that the skin protects underlying structures against damage. At the same time, the non-Newtonian properties of hyaluronic acid allow the collagen fibers to move easily through the interstitial substance. This lubrication by hyaluronic acid allows the skin to accommodate the changes in shape and volume that occur when the underlying bones and joints move. The hyaluronic acid gel in the skin also inhibits movement of foreign particles, such as bacteria. This makes an important contribution to the skin’s defensive function as a barrier to infection. The barrier also affects the free passage of other exogenous material, such as some drugs. This is the reason why some subcutaneous injections and drugs in creams or ointments include a small amount of the enzyme hyaluronidase. The enzyme degrades the hyaluronic acid gel around it, so that the drug is able to pass more freely through the tissues of the skin. |
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When we get older, the amount of hyaluronic acid in the skin diminishes as the skin cells lose their ability to produce hyaluronic acid. In addition, the molecular weight of the HA is decreased with age, so that it does not hold water as well as before. This can be demonstrated by squeezing the skin between the fingers. In young people, the skin rapidly restores itself to its original volume. However, as we get older, the skin’s ability to restore itself is reduced. |
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Other Hyaluronic Acid Resources: Hyaluronic Acid and Osteoarthritis Supplement Research Foundation - Hyaluronic Acid Review |
Patients who take oral supplements with hyaluronic acid, should note that it is derived from chicken cartilage. If you are allergic to chicken, consult your physician before taking. Inflammatory reactions have been reported, though rarely. |
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