title: Efficacy and Tolerability of a Combined 445nm and 630nm Over-the-counter Light Therapy Mask with and without Topical Salicylic Acid versus Topical Benzoyl Peroxide for the Treatment of Mild-to-moderate Acne Vulgaris.
abstract: OBJECTIVE
  To evaluate the efficacy and tolerance of a combined 445nm/630nm light therapy mask for the treatment of mild-to-moderate acne vulgaris with and without topical 1% salicylic acid with retinol versus 2.5% benzoyl peroxide.
  
  
  METHODS
  A 12-week evaluator-blinded, randomized study. Subjects were randomized to be treated with the 445nm/630nm light therapy mask alone, benzoyl peroxide, or 445nm/630nm light therapy mask with topical 1% salicylic acid with retinol.
  
  
  METHODS
  Healthy male and female subjects 12 to 35 years old with Fitzpatrick skin types I to VI and mild-to-moderate facial acne vulgaris.
  
  
  METHODS
  The primary endpoint was the change in the number of inflammatory acne lesions after 12 weeks of treatment. Secondary endpoints included the change in noninflammatory acne lesions, change in total acne lesions, change in Investigator Global Acne Assessments, and overall responder rate.
  
  
  RESULTS
  445nm/630nm light therapy mask-treated subjects showed a 24.4-percent improvement in inflammatory acne lesions (p<0.01) versus 17.2 percent (p<0.05) and 22.7 percent (p<0.01) in benzoyl peroxide and 445nm/630nm light therapy mask with topical 1% salicylic acid with retinol, respectively, a 19.5-percent improvement in noninflammatory lesions (p<0.001) versus 6.3 and 4.8 percent for benzoyl peroxide and 445nm/630nm light therapy mask with topical 1% salicylic acid with retinol, respectively. Subjects in the 445nm/630nm light therapy mask group also achieved a 19.0-percent improvement in the Investigator Global Acne Assessment (p<0.001) versus 4.7 percent in benzoyl peroxide and 13.9 percent in 445nm/630nm light therapy mask with topical 1% salicylic acid with retinol (p<0.01). Treatments were well-tolerated overall with trends toward less early irritation in the 445nm/630nm light therapy mask group.
  
  
  CONCLUSIONS
  445nm/630nm light therapy mask appears to be a safe and effective therapy for mild-to-moderate acne.
authors.affiliation: Center for Clinical and Cosmetic Research and Center for Cosmetic Enhancement, Aventura, Florida;; Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, Florida.
authors.forename: Mark S
authors.initials: MS
authors.lastname: Nestor
authors.affiliation: Center for Clinical and Cosmetic Research and Center for Cosmetic Enhancement, Aventura, Florida;
authors.forename: Nicole
authors.initials: N
authors.lastname: Swenson
authors.affiliation: Center for Clinical and Cosmetic Research and Center for Cosmetic Enhancement, Aventura, Florida;
authors.forename: Angela
authors.initials: A
authors.lastname: Macri
authors.affiliation: Center for Clinical and Cosmetic Research and Center for Cosmetic Enhancement, Aventura, Florida;
authors.forename: Mitchell
authors.initials: M
authors.lastname: Manway
authors.affiliation: Center for Clinical and Cosmetic Research and Center for Cosmetic Enhancement, Aventura, Florida;
authors.forename: Paige
authors.initials: P
authors.lastname: Paparone