If you have an ACS member number, please enter it here so we can link this account to your membership. (optional)

ACS values your privacy. By submitting your information, you are gaining access to C&EN and subscribing to our weekly newsletter. We use the information you provide to make your reading experience better, and we will never sell your data to third party members.


Consumer Products


May 27, 2021 | A version of this story appeared in Volume 99, Issue 20


Letters to the editor

Hyaluronic acid

I enjoyed reading Craig Bettenhausen’s article “Hyaluronic Acid, the Everywhere Biopolymer” (C&EN, May 3, 2021, page 26). It has much personal relevance for me. Within a few days of retirement in January 2019 from my position as a research chemist with the US Food and Drug Administration, I started feeling extreme pain in my right knee. X-rays revealed I had developed a moderate case of osteoarthritis in the knee just as I was starting my wonderful new life of retirement. Cortisone shots and physical therapy did nothing to ease the pain. In May of 2019, I received a course of three gel shots—hyaluronic acid—from my orthopedic specialist. The pain was reduced almost immediately after the first injection. After the third injection, the arthritic knee pain was gone. It is now almost 2 years later, and the right knee still feels very good, just an occasional twinge if I overexert it. I now take two capsules of a supplement containing hyaluronic acid, 100 mg total, every day. For me, hyaluronic acid is a miracle drug. Sincere thanks from me to the chemists, medical researchers, and doctors who have developed this treatment.

Joseph E. Jablonski
Twinsburg, Ohio.


This article has been sent to the following recipient:

Chemistry matters. Join us to get the news you need.