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Wrinkle Relief: Injectable Cosmetic Fillers

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In the quest for youth-or at least a more youthful appearance-women and men are seeking treatments to minimize laugh lines, crow's feet, and forehead furrows. A popular treatment involves injecting cosmetic wrinkle fillers into the face.

Injectable cosmetic wrinkle fillers are soft tissue fillers approved as medical devices by the Food and Drug Administration (FDA). These devices are injected into the skin to help fill in facial wrinkles, restoring a smoother appearance. Most of these wrinkle fillers are temporary because they are eventually absorbed by the body.

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Some people may need more than one injection to achieve the wrinkle-smoothing effect. The effect lasts for about six months or longer.

Successful results depend on

  • health of the skin
  • skill of the doctor
  • type of filler used

Uses

FDA has approved absorbable injectable cosmetic wrinkle fillers for correcting soft tissue contour defects, such as moderate and severe wrinkles and folds. Some absorbable fillers are approved for restoring or correcting the signs of facial fat loss in people with human immunodeficiency virus (HIV).

The only non-absorbable FDA-approved injectable cosmetic wrinkle filler is for correcting facial tissue around the mouth.

FDA-approved cosmetic wrinkle fillers should not be used for

  • plumping the lips (lip augmentation)
  • increasing breast size (breast augmentation)
  • implanting into bone, tendon, ligament, or muscle
  • implanting into blood vessels

Filler Materials

Wrinkle fillers are made of various types of materials, and some include a combination of products. Some products also contain lidocaine, which numbs the skin at the injection site.

The materials used in injectable cosmetic wrinkle fillers include

Temporary (absorbable) fillers

  • Collagen injections are made of highly purified cow or human collagen. Collagen is a natural protein that is a major component of skin and other tissues in the body.
  • Hyaluronic acid gel is a protective lubricating gel, produced naturally by the body, that binds with water to plump the skin.
  • Calcium hydroxylapatite is a mineral that is a major component of bone. Calcium hydroxylapatite is a well-matched (biocompatible) material that dissolves in the body (biodegradable) and is implanted in the form of a gel.
  • Poly-L-lactic acid (PLLA) is a biodegradable, biocompatible, synthetic material from the alpha-hydroxy-acid family that has been widely used for many years in dissolvable stitches and bone screws.

Permanent (non-absorbable) filler

  • Polymethylmethacrylate beads (PMMA microspheres) are tiny round, smooth plastic particles that have been tested to be biocompatible. They are not absorbed by the body.
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