Fillmed (Filorga) M-HA 18 is formulated with 18mg/ml of highly cross-linked hyaluronic acid. Hyaluronic acid is a major component of skin where it is involved in repairing damage. Age and exposure to UVB rays degrade hyaluronic acid production and have a detrimental effect on its continued production. Scientific research has shown that the main component of M-HA 18 is also necessary for collagen production and is integral to the natural skin hydration process.