How Does Laser Therapy (LLLT) Actually Work to Grow Hair?

December 29th, 2014

Q: How does laser therapy work?

A: The actual mechanism by which Low Level Laser Therapy (LLLT) stimulates hair growth (i.e., increases the anagen phase of the hair cycle) is still unknown. Possible mechanisms include the following:

  1. Stimulating the production of various growth factors (insulin-GF, vascular endothelial-GF, fibroblast-GF)
  2. Dilating the blood vessels of the hair follicles
  3. Increasing the production of ATP (molecular energy) in the cells through its effects on mitochondria.

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Posted by Robert M. Bernstein M.D. on December 29th, 2014 at 11:31 am


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