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Hyaluronic acid
is a natural substance found in skin and works to trap water and
maintain the intercellular space within the dermis. In this way,
hyaluronic acid helps in maintaining volume and shape in our face
and lips. As our skin ages, hyaluronic acid, collagen and elastin
are gradually lost from the dermis. The end result is volume loss,
skin laxity, and wrinkles.
Hylaform is an animal based stabilized hyaluronic
acid based dermal filler. It was FDA approved for the treatment
of wrinkles in April 2004, but has been widely used in Europe and
other parts of the world for many years.
Unlike Restylane, Hylaform is animal derived and
carries a higher risk of allergic reactions. It is produced from
specially bred rooster combs. It is purified, sterilized, and then
chemically stabilized into a clear gel form.
Hylaform is used to replenish the dermal volume loss that allows
wrinkles to form. It is also used to enhance lips and fill in acne
scars. Because it is minimally modified, Hylaform has a low incidence
of hypersensitivity reactions and requires no skin testing prior
to treatment. The chemically stabilized hyaluronic acid found in
Hylaform can remain in the dermis for up 6 to 12 months. This is
longer than the collagen based dermal fillers.
The clear Hylaform gel is injected using a fine
needle. It is injected into the dermis below the wrinkle and
lifts the wrinkle out to the desired correction. Hylaform is
injected directly into and around the lip for lip
enhancements. Topical or local anesthetic is used to anesthetize
the injection sites. Mild to moderate stinging and burning is
common during the injection, while redness and swelling can
last for hours or days after the injection.
Once injected, Hylaform integrates into the dermis
and binds water. The results are immediate. It does nothing to hinder
the normal metabolism and movement of nutrients and oxygen. Over
time, Hylaform is gradually reabsorbed without a trace. For this
reason, follow up treatments are needed to maintain your results
at 6 to 12 month intervals.
The amount of Hylaform used during your treatment
depends on the desired correction.
Side effects include redness, swelling, bruising,
and injection site pain that may last for up to one week. Lip swelling
and discomfort can be significant and asymmetry may be noted during
the first one to two weeks. Also, small bumps of Hylaform may be
palpated at the site of injection. These bumps are not usually visible,
but can remain for several weeks or months after injection before
gradually blending into the dermis.
Hypersensitivity to Hylaform is not common but
may occur in individuals with bird allergies. A rare but more severe
inflammatory reaction known as a granuloma can form in response
to Hylaform injections and may require surgical management for treatment.
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