Red Light Phototherapy Alone Is Effective for Acne Vulgaris: Randomized, Single-Blinded Clinical Trial
Article first published online: 13 JUL 2007
Volume 33, Issue 10, pages 1228–1233, October 2007
How to Cite
NA, J. I. and SUH, D. H. (2007), Red Light Phototherapy Alone Is Effective for Acne Vulgaris: Randomized, Single-Blinded Clinical Trial. Dermatologic Surgery, 33: 1228–1233. doi: 10.1111/j.1524-4725.2007.33258.x
- Issue published online: 13 JUL 2007
- Article first published online: 13 JUL 2007
BACKGROUND Recently, a demand for safe and effective treatment of acne has been increasing. Although visible light has attracted attention as a new option, the effect of red light alone has not yet been evaluated.
OBJECTIVES The objective was to assess the efficacy of red light phototherapy with a portable device in acne vulgaris.
METHODS Twenty-eight volunteers with mild to moderate acne were treated with portable red light–emitting devices in this split-face randomized trial. The right or left side of the face was randomized to treatment side and phototherapy was performed for 15 minutes twice a day for 8 weeks. Clinical photographs, lesion counts, and a visual analog scale (VAS) were used to assess each side of the face at baseline and Weeks 1, 2, 4, and 8, and a split-face comparison was performed.
RESULTS The percent improvement in noninflammatory and inflammatory lesion counts of the treated side was significant compared to the control side (p<.005). VAS decreased from 3.9 to 1.9 on the treatment side and the difference between the treatment and control sides was significant at Week 8 (p<.005).
CONCLUSIONS This study shows that red light phototherapy alone can be a new therapeutic option for acne vulgaris.