Blue 405-420 nm appears effective in inflammatory acne

1: Hautarzt. 2005 Nov;56(11):1027-32.

Light, laser and PDT therapy for acne

[Article in German]

Borelli C, Merk K, Plewig G, Degitz K.

Klinik für Dermatologie und Allergologie der Ludwig-Maximilians-Universität München.

In recent years, a number of studies have evaluated the treatment of acne using electromagnetic waves, such as lasers, photodynamic therapy, visible light or radio waves. While the efficacy of laser treatment is still uncertain, photodynamic therapy shows promising results, but with marked side-effects, as destruction of sebaceous glands. Treatment with blue light (405-420 nm wavelength) also appears effective and can be regarded as an treatment option for inflammatory acne.