How to Choose an Effective Laser Hair Regrowth Device
Choosing Low Level Laser Hair Loss Treatment
Ever since US FDA has cleared certain low level laser hair growth devices for the treatment of hair loss and to promote hair regrowth for both men and women, there has been an influx of laser devices on the market.
There are many brands on the market these days: LaserCap, LaserPro, HairMax and iRestore to name a few. So which one should you choose? Many of these devices claim to have US FDA clearance for treating hair loss, is that enough? And how long should each treatment last?
Well, it turns out that not all laser hair regrowth devices are created equal.
Why Laser Hair Regeneration is Effective?
Over the years, promoters of laser hair regrowth devices have struggled to explain why laser therapy can regrow hair. Many cite that laser therapy stimulates blood circulation on the scalp while others say that laser light energizes the follicles and improve scalp health. All seriously lacking in scientific substance.
Finally, thanks to a new study published jointly by the Department of Dermatology at Sun Yat-sen University and South China University of Technology in China, we now have a clear understanding as to why laser therapy is effective in promoting hair growth and more importantly, the study also tells you which laser device is the most effective.
Laser Hair Therapy Activates Wnt Signaliing
In the study, the researchers used in-vitro culture of human hair follicles involving different intensities of laser lights and LEDs in order to evaluate their effect on hair growth. It is found that laser therapy invokes activation of Wnt beta-catenin signaling, and by enhancing the expression of Wnt beta-catenin signaling molecules in the hair matrix, hair growth is facilitated.
Wnt Signaling Pathway & Hair Growth
What is Wnt Pathway Signaling? Wnt signaling regulates stem cell activity as a proliferative and self-renewal signal. In a study published in the Journal of Investigative Dermatology, Kwack and his team indicated that a higher than normal level of DKK-1 protein have been found in biopsies of scalp skin taken from balding men.
It was later proven that DKK-1 inhibits Wnt signaling pathway and, consequently, stem cell division; resulting in a shortening of the growth cycle or anagen phase of hair follicles.
Dr. Mark Dahl further reiterated that stem cells and proper Wnt pathway signaling facilitate normal hair growth. In addition, certain Wnt proteins, such as Wnt 10b, have been shown to promote hair follicle growth in organ culture.
There you have it, finally a scientific explanation as to why laser therapy for hair loss works.
Which Laser Hair Growth Devices the Most Effective?
And there is more to the study. It turns out that not all laser hair growth devices are created equal. The study shows that 655 nanometer red light together with LED was the most effective in stimulating hair growth. According to the researchers, 655 nanometer red light plus LED not only enhanced hair shaft elongation, but also reduced catagen transition in human hair follicle organ culture, with the greatest effectiveness observed at 5 minutes of usage.
So if you are on the market shopping for a laser hair regrowth device, make sure you check out the intensity of the device to see if it is comparable to 655 nanometer.
Laser Hair Therapy Results
What kind of results you can expect from laser hair regrowth treatment? If you are a norwood class 3 or worse, forget about it. Low level laser therapy will not give you the results you want. Laser hair treatment works best when you are noticing initial signs of hair loss. If you have been losing your hair for a while or if you have clearly defined bald patches, laser therapy will not give you the improvement you want.
More Info on Laser Hair Regeneration?
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