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What Is Hyaluronic Acid?
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  1. Home
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  3. Body, Mind & Spirit
  4. Bone & Joint

What Is Hyaluronic Acid?

What are the benefits and side effects of hyaluronic acid? Does it really work for knee pain and face lifts?

Andrew Weil, M.D. |June 22, 2017

hyaluronic acid
2 min

Hyaluronic acid (HA) is produced in the body. It is a constituent of the synovial fluid that lubricates joints, allowing them to move freely, and also of vitreous humor, the clear, jelly-like substance in the eye. Hyaluronic acid extracted from rooster combs (the Mohawk-like crown on a rooster’s head) or from bacterial cultures is used medically to help relieve knee pain from osteoarthritis when no other treatment has helped. (People with arthritis tend to have lower than normal levels of this substance.) Called “viscosupplementation,” this involves injecting hyaluronic acid, usually in 3 to 5 shots over several weeks. When it works, relief may last as long as two years, although more typically its benefits peak at about three months, and then subside.

However, research presented at the annual meeting of the American Academy of Orthopaedic Surgeons (AAOS) in March (2017) cited “strong evidence” against the use of HA injections for osteoarthritis of the knee and noted that the treatment is not recommended by the organization. The report made the point that insurance companies often won’t pay for knee replacement surgery unless patients have tried and failed other treatments. For that reason, the researchers wrote, a lot of money is wasted on treatments that don’t work, including ha injections.

If you are considering the treatment and are allergic to eggs, be sure to tell your doctor, so you can get bacterial HA and avoid an allergic reaction to the chicken-derived product. There are few side effects of treatment. You may have immediate pain, warmth and swelling at the site of the injection, and it is best to avoid standing too long, jogging or doing heavy lifting for the following two days. Although the injections are expensive, many insurance programs now cover them.

I’m aware that HA injections are also used to reduce facial wrinkles and lines – so-called “liquid facelifts” – to improve appearance prior to a permanent, surgical facelift. As many as three treatments may be needed to get desired results, at an average cost of $613 per treatment. Unfortunately, the results typically last only three to 5 months. Risks include allergic reactionS or development of red, thickened nodules at the injection sites that can last weeks or months. If you are considering a liquid lift, look for a plastic surgeon qualified to perform the procedure.

A variety of cosmetic creams and serums containing hyaluronic acid are on the market and are said to help skin retain moisture longer and plump wrinkles. I’m also aware of claims that taking HA orally or applying it to the skin can slow aging, but there is no evidence for any of this. Finally, some research suggests that HA can help treat burns and skin wounds, but this remains to be confirmed.

Andrew Weil, M.D.

 

Source:

Nicholas Bedard et al, “What are the Costs of Knee Osteoarthritis in the Year Prior to Total Knee Arthroplasty.” Paper presented at the 2017 Annual Meeting of the American Academy of Orthopaedic Surgeons, March 14, 2017, San Diego, CA

 

Read more tips, recipes, and insights on a wide variety of topics from Dr. Weil here.

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