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Different types of collagen fillers have different advantages.
Zyderm is a bovine collagen that lasts for six to ten months and is
used for shallow scars.
Zyplast is another bovine collagen, but is crossed with a heavier filler
so it lasts longer than Zyderm (nine months to a year.) These two are easy to
implant and are not often abused but certain patients can have allergic reactions
to the collagen.
Fibrel is a filler containing gelatin, amino caprotic acid and plasma
or saline and lidocaine. Its effects are seen for one to five years and is a good
alternative for people who are allergic to Zyderm and Zyplast.
Artecoll is a synthetic filler consisting of polymethyl methacrylate
microspheres (PMMA), collagen, lidocaine and saline. After the collagen degrades,
the PMMA spheres are left. It has been shown to be reliable and long lasting in
European markets but has yet to be released in the United States.
Hylan B gel is another filler made from substances in rooster coxcombs.
It lasts nine months to a year but requires a series of injections rather than
just one session and, again, has not yet been released in the United States.
Resoplast is another bovine collagen similar to Zyderm and causing the
same allergic reactions.
Autologen is a filler made from autologous collagen which resists enzymatic
degradation and allergic reactions and has been shown to last for over a year.
Similarly, Isolagen is autologous collagen taken from the patient and prepared
for intradermal injection. Isolagen has not been fully tested yet.
Finally there are fat injections. These take time and careful preparation
before they can be used. The fat is removed from a region such as the abdomen,
thighs, knees, or backside. The fat has to be purified, washed, separated, centrifuged
and prepared before use.
Hyaluronic
acid (Restylane, Hylaform) It is expected that Hyaluronic acid will
surpass collagen as the most popular soft tissue filler for lines and wrinkles.
Also see :Botox Injections
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