title: Safety and efficacy of a cohesive polydensified matrix hyaluronic acid for the correction of infraorbital hollow: an observational study with results at 40 weeks.
abstract: BACKGROUND
  Utilizing a soft-tissue filler that is more fluid and less resistant to deformation may be advantageous for correction of infraorbital hollows.
  
  
  OBJECTIVE
  The objective of this study was to determine the safety and efficacy of the latest hyaluronic acid filler, created with a cohesive polydensified matrix, with a low elasticity and viscosity, for infraorbital hollows correction.
  
  
  METHODS
  Subjects (49) with at least a grade 2 Merz infraorbital hollow scale in the Validated Assessment Scales for the mid face (0-4) of the right and/or left side were photographed and treated at baseline, and with a touch up treatment after 2 weeks if necessary. Subjects were also photographed at 2, 6, and 10 months after baseline, with optional retreatment at 6 months. The photographs were graded by a blinded sub-investigator.
  
  
  RESULTS
  Mean hollowness scores for both eyes, either individually or combined, at 2, 6, and 10 months were considerably improved compared to baseline (P<.001). No serious adverse events were reported. Of the 46 subjects completing the study, 31 (66%) did not request retreatment after 6 months. At 10 months, 27/31 (87%) still exhibited a hollowness improvement of at least 1-point from baseline.
  
  
  CONCLUSIONS
  Belotero Balance was safe and effective for the correction of infraorbital hollows.
authors.forename: Oscar
authors.initials: O
authors.lastname: Hevia
authors.forename: Bernard H
authors.initials: BH
authors.lastname: Cohen
authors.forename: David J
authors.initials: DJ
authors.lastname: Howell
mesh_terms: D000328:Adult; D000368:Aged; D003357:Cosmetic Techniques / Q000009:adverse effects / Q000639:trends*; D004487:Edema / Q000139:chemically induced / Q000175:diagnosis; D005260:Female; D006801:Humans; D006820:Hyaluronic Acid / Q000008:administration & dosage* / Q000009:adverse effects; D008297:Male; D008875:Middle Aged; D009915:Orbit; D016037:Single-Blind Method; D015595:Skin Aging / Q000187:drug effects* / Q000473:pathology; D016896:Treatment Outcome
chemical_list: C584568:belotero balance; D006820:Hyaluronic Acid