Eye drop solution based on hyaluronic acid 0,4%.

FOURHYAL is indicated to protect and moisturize the ocular surface in case of redness, burning and eye fatigue due to dry eye syndrome, environmental stress, visual stress due to prolonged use of electronic devices, intense study and prolonged driving.
FOURHYAL can be administered in postoperative treatment to relieve symptoms of dry eye and during the use of contact lenses to improve application and comfort.

The product can be used with contact lenses.
The product is preservative-free.
The product is phosphate-free.

Validity: 36 months
0,5 ml reclosable single dose containers
Multidose 10 ml preservative-free

Download the package insert for FourHyal single dose:

Download the package insert for FourHyal multidose:

Hyaluronic Acid

Hyaluronic acid is a polysaccharide with the ability to retain a large amount of water even a thousand times his weight, it has an excellent viscoelasticity and a behavior similar to that of soluble mucins in the tear film. This results in an excellent moisturizing and lubricating capacity. The properties of Hyaluronic acid to bind large amounts of water and to mimic the beahvior of mucins, help to maintain the stability of the tear film and to ensure and optimal ocular protection and lubrication.


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