Utilizing electromagnetic radiation for hair growth: a critical review of phototrichogenesis

Dermatol Clin. 2013 Jan;31(1):193-200. doi: 10.1016/j.det.2012.08.018. Epub 2012 Oct 11.


Hair loss has a high prevalence in the general population and can have significant medical and psychological sequelae. Pattern hair loss and alopecia areata represent the major reasons patients present to dermatologists in relation to hair loss. Because conventional treatment options are generally incompletely effective, novel methods for hair grown induction are being developed. The role of using electromagnetic radiation, including low-level laser therapy for the management of hair loss through phototrichogenesis, is reviewed in this article.

Publication types

  • Review

MeSH terms

  • Alopecia Areata / radiotherapy*
  • Electromagnetic Radiation*
  • Hair / radiation effects*
  • Humans
  • Low-Level Light Therapy / methods*
  • Treatment Outcome