Side effects may include lumpiness at the injection site, persistent swelling or redness, increased sensitivity, and rash or itching more than 48 hours after injection. The lumpiness (nodules), and granulomas, can be difficult for doctors to treat. If the recipient has allergies to bovine collagen or lidocaine, severe allergies, a susceptibility to form keloid or hypertrophic scars, or fails a small skin test,<unk>  should not be used. Because the device ultimately works by causing tissue to grow around the microsphere scaffold, there is a risk of overgrowth if too much<unk>  is administered.
Artefill
Rhinoplasty
Elastix 
Angellift
Surgical sealant film
TachoSil
Crusaid
Almanac