Now several companies hope to put hyaluronic acid to use in medicine.

More evidence is needed to rate hyaluronic acid for these uses.

There isn't enough information about hyaluronic acid to know if it is safe when taken by mouth.

In fact, hyaluronic acid is produced and found naturally within the body.

But what makes hyaluronic acid special is its mechanical properties.

Prescription forms of hyaluronic acid are safe for most people.

The results of hyaluronic acid injection, shown here, can last nine months or longer.

Hyaluronic acid is now safe for treatment of wrinkles with affordable price.

In fact, hyaluronic acid has been promoted as a "fountain of youth."

However, not enough is known about the safety of hyaluronic acid when taken by mouth or applied to the skin during pregnancy.

If you are breast-feeding, don't use hyaluronic acid, even by injection.

Joint injections of hyaluronic acid have not been found to lead to significant improvement.

The most common products are based on hyaluronic acid and calcium hydroxylapatite.

If one thinks of the human body as a well-oiled machine, hyaluronic acid is that oil.

Patents are likely to play a big role in determining which companies will profit from hyaluronic acid.

People take hyaluronic acid for various joint disorders, including osteoarthritis.

Sometimes hyaluronic acid can cause pain and redness where it is injected.

Hyaluronic acid is a substance that is naturally present in the human body.

Hyaluronic acid is also used as a lip filler in plastic surgery.

The good news is that you can replenish hyaluronic acid topically.

One of the best moisturizing ingredients for aging skin is hyaluronic acid.

Two kinds of injections are used: hyaluronic acid and corticosteroids.

The hyaluronic acid draws fluid to the treated area.

The idea behind hyaluronic acid joint injections is to replace some of the natural supply that's been lost.

Hyaluronic acid is injected directly into the cavity around the knee joint.