Low-level laser therapy and narrative review of other treatment modalities in androgenetic alopecia

Lasers Med Sci. 2020 Aug;35(6):1239-1244. doi: 10.1007/s10103-020-02994-4. Epub 2020 Mar 11.


Androgenetic alopecia (AGA), also termed as androgenic alopecia or common baldness, is a condition where there is androgen mediated conversion of susceptible terminal hair into vellus hair. Although it is reported more commonly in males, it also affects females but the incidence is relatively unknown. AGA tremendously affects the psychology of the patient due to its chronicity of treatment and cosmetic implications. There are numerous treatment options available for AGA but the choice of treatment has to often be tailored according to the patient's needs, affordability, and compliance. This review focusses on the various treatment options available, with special emphasis on the role of low-level laser therapy (LLLT) in the management of AGA. The literature research considered published journal articles (clinical trials or scientific reviews). Studies were identified by searching electronic databases (MEDLINE and PubMed) and reference lists of respective articles. Only articles available in English were considered for this review.

Keywords: Androgenetic alopecia; Low-level laser therapy; Treatment.

Publication types

  • Review

MeSH terms

  • Alopecia / drug therapy
  • Alopecia / radiotherapy*
  • Androgen Antagonists / therapeutic use
  • Hair / transplantation
  • Humans
  • Low-Level Light Therapy*
  • Minoxidil / therapeutic use
  • Platelet-Rich Plasma / metabolism


  • Androgen Antagonists
  • Minoxidil