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Amounts for oral supplementation have not been established, due to lack of research, and it is unknown whether hyaluronic acid can be absorbed from the gastrointestinal tract. Topical products are applied in the mouth two or more times per day, to the nose three to four times per day, or with bandaging for skin ulcers. Eye drops containing 0.1 to 0.4% sodium hyaluronate are used three or more times per day, and ear drops containing 1% sodium hyaluronate are used once a day.
Hyaluronic acid is produced in the human body and is found in the tissues of all animals. A nonanimal source of hyaluronic acid can be synthesized by bacterial fermentation.
Hyaluronic acid is produced naturally in the human body and is not considered an essential nutrient. However, hyaluronic acid levels in osteoarthritic joints are below normal.2
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The information presented by Healthnotes is for informational purposes only. It is based on scientific studies (human, animal, or in vitro), clinical experience, or traditional usage as cited in each article. The results reported may not necessarily occur in all individuals. Self-treatment is not recommended for life-threatening conditions that require medical treatment under a doctor's care. For many of the conditions discussed, treatment with prescription or over the counter medication is also available. Consult your doctor, practitioner, and/or pharmacist for any health problem and before using any supplements or before making any changes in prescribed medications. Information expires December 2017.