2022, Number 2
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Dermatología Cosmética, Médica y Quirúrgica 2022; 20 (2)
Low-power capillary laser in contemporary therapy of androgenetic alopecia: A contemporary review of the literature
Méndez BSI
Language: Spanish
References: 43
Page: 216-224
PDF size: 328.97 Kb.
ABSTRACT
Androgenetic alopecia (AGA) is a multifactorial entity that affects
both men and women and has a great social and psychological
impact. Contemporary AGA treatment uses a wide range
of tools. Current research is constantly looking for new treatments
that can modify the capillary morphogenesis pathways as
possible therapeutic agents.
In this work, we make an updated review of the treatment
with low-level laser therapy within the therapeutic arsenal for
AGA. An unstructured PubMed engine search was performed
within the Medline database using the mesh terms:
Androgenetic
alopecia, Hair loss, Hair regrowth, Low-level light therapy and
Lowlevel
laser therapy. A narrative review was written, oriented to a
clinical perspective, describing the current role of the LLL in the
treatment of AGA.
The current level of evidence for this therapy is supported
by over a dozen of clinical trials, demonstrating its efficacy in
the treatment of aga in both men and women, either alone
or as an adjunct therapy to topical agents. While there is no
established value for the best wavelength for LLL, most studies
use therapeutic wavelengths ranging from 500-1 100 nm with a
power density of 3 to 90 mw/cm
2 and fluency of 1 to 4 J/cm
2.
While the efficacy of LLL therapy is not in question, exact data
to support this configuration is still lacking. Further research
should be aimed at standardizing the appropriate LLL output
power and wavelength for the specific treatment of AGA. Furthermore,
more studies are needed to reinforce the long-term
safety of this approach.
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