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low level light therapy hair


low level light therapy is what?

low level light therapy for hair loss

low level light therapy for hair loss

 

low level light therapy for hair loss

low level light therapy for hair loss

What is Low Level Laser Therapy For Hairloss?-Where do I begin? Low Level Laser Therapy for hair loss, or “LLLT” for short, has been around for a long time. The first ever mention of low level laser therapy having a positive effect on hair growth was in 1967. A Hungarian scientist named Dr. Endre Mester was using the new laser technology to see if it would cause cancer in mice. I say “new” because lasers were only invented seven years earlier in 1960. During his experiment he shaved some mice so that the laser could better penetrate their skin (this wasn’t a cutting laser) and while he learned that low level laser light doesn’t cause cancer he also noted that the areas where the mice were “hit” with the laser seemed grow more hair.

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Is this conclusive evidence that low level laser therapy for hair loss works? Of course not, because the mice didn’t have any sort of genetically programmed hair loss, natural or manmade, and they were essentially just normal average mice with their fur shaved off so it kind of doesn’t make sense, unless there is more to the story, but it is the first documented observation of this phenomenon. Personally, I don’t think we can rule out that he was just shooting lasers as these mice like any ten year old kid would as soon as he got his hands on a new laser toy, like kids do with magnifying glasses on sunny days:) This observation was made a full forty years BEFORE the first FDA cleared laser device for hair loss hit the market. This means that the technology behind laser hair restoration systems isn’t anything new and in fact it is quite old in the overall scheme of things, not to mention it is fairly primitive.

What is the clinical evidence to show laser hair therapy is effective?

Physicians have varying views on whether or not low level laser therapy is effective. While some physicians reject its use entirely, others believe that low level laser therapy can provide benefit for some men and women suffering from androgenic alopecia (genetic baldness). It has also been suggested that it may assist a hair transplant patient’s postoperative wound healing process and expedite hair growth.

Results of a double-blind, sham device-controlled, randomised multicentre trial have shown that 110 male patients with Norwood-Hamilton classes IIa-V androgenic alopecia, exhibited a significantly greater increase in mean terminal hair density compared with subjects in the sham device group after 26 weeks therapy with the laser light comb (p <0.0001).
Macro photographs of the scalp were captured of all of the subjects at the beginning and end of the trial and sophisticated hair counting software was used to determine the number of normal-sized hairs that grew as a result of using either device.
Hair growth in subjects who used laser therapy increased by an average of 19 normal-size hairs per square centimeter, while it decreased by an average of 7 normal-size hairs per square centimeter in those using the placebo device.
Consistent with this evidence for primary effectiveness, significant improvements in overall hair regrowth were demonstrated in terms of patients’ subjective assessment (p < 0.015) at 26 weeks over baseline.
Treated subjects also experienced more favourable hair attributes, such as thicker, shinier, and more manageable hair compared to those who used the placebo device.
No statistical improvement was noted on global investigator assessment.
Similar study results have been reported in a double-blind device controlled study in women with androgenic alopecia.

In a second study of 103 males and 122 females with pattern alopecia that completed the study, HairMax® LaserComb (with 12, 9 and 7 beams) was reported to result in increase in terminal hair density compared to similar trial subjects treated with a sham device.

Trials are underway to study the efficacy of LaserCap™ (Transdermal Cap, Gates Mills, Ohio), TopHat 655 Rejuvenation System (Apira Science, Newport Beach, California) and Erchronia ML Scanner (Erchronia Corporation, McKinney, Texas) in pattern alopecia and other forms of hair loss.

However, published trials of low level laser light have been criticised as not being independent and anedotal individual reports of using these devices appears disappointing.

 

low level light therapy hair

What is the clinical evidence to show laser hair therapy is effective?-Physicians have varying views on whether or not low level laser therapy is effective. While some physicians reject its use entirely, others believe that low level laser therapy can provide benefit for some men and women suffering from androgenic alopecia (genetic baldness). It has also been suggested that it may assist a hair transplant patient’s postoperative wound healing process and expedite hair growth.

Results of a double-blind, sham device-controlled, randomised multicentre trial have shown that 110 male patients with Norwood-Hamilton classes IIa-V androgenic alopecia, exhibited a significantly greater increase in mean terminal hair density compared with subjects in the sham device group after 26 weeks therapy with the laser light comb (p <0.0001).
Macro photographs of the scalp were captured of all of the subjects at the beginning and end of the trial and sophisticated hair counting software was used to determine the number of normal-sized hairs that grew as a result of using either device.
Hair growth in subjects who used laser therapy increased by an average of 19 normal-size hairs per square centimeter, while it decreased by an average of 7 normal-size hairs per square centimeter in those using the placebo device.
Consistent with this evidence for primary effectiveness, significant improvements in overall hair regrowth were demonstrated in terms of patients’ subjective assessment (p < 0.015) at 26 weeks over baseline.
Treated subjects also experienced more favourable hair attributes, such as thicker, shinier, and more manageable hair compared to those who used the placebo device.
No statistical improvement was noted on global investigator assessment.
Similar study results have been reported in a double-blind device controlled study in women with androgenic alopecia.

In a second study of 103 males and 122 females with pattern alopecia that completed the study, HairMax® LaserComb (with 12, 9 and 7 beams) was reported to result in increase in terminal hair density compared to similar trial subjects treated with a sham device.

Trials are underway to study the efficacy of LaserCap™ (Transdermal Cap, Gates Mills, Ohio), TopHat 655 Rejuvenation System (Apira Science, Newport Beach, California) and Erchronia ML Scanner (Erchronia Corporation, McKinney, Texas) in pattern alopecia and other forms of hair loss.

However, published trials of low level laser light have been criticised as not being independent and anedotal individual reports of using these devices appears disappointing.

low level laser therapy hair loss reviews

low level laser therapy hair loss reviews

Low-Level Laser Therapy (LLLT) Benefits: Health & Hair

Scientists discovered laser technology in 1960. Soon after, researchers began testing its effects on health. What they found? While some wavelengths can blind you, other wavelengths can…

Accelerate the regeneration of crushed nerves
Help repair non-healing stomach ulcers
Encourage faster wound healing

Then researchers discovered laser therapy’s effects on hair health. The results were promising and paradoxical…

On the one hand, laser therapy can permanently remove body hair. On the other, it can accelerate hair growth rates in mice and even increase hair follicle proliferation in humans. The question was… Why?

How can laser treatments both encourage faster hair growth or permanently remove hair? How can it accelerate wound healing or permanently blind us?

 

How is laser hair therapy supposed to work?

The hair growth cycle consists of three phases: growth (anagen phase), resting (telogen phase) and shedding (catagen phase). Hair loss in androgenetic alopecia depends on a testosterone derivative in the skin, dihydrotestosterone (DHT). Low level laser therapy is believed to increase blood flow in the scalp and stimulate metabolism in catagen or telogen follicles, resulting in the production of anagen hair. In theory:

The photons of light act on cytochrome C oxidase leading to the production of adenosine triphosphate (ATP). This is converted to cyclic AMP in the hair follicle cells, releasing energy and stimulating metabolic processes necessary for hair growth.
Release of nitric oxide from cells leads to increased vascularisation to the scalp distributing nutrients and oxygen to the hair roots.
Excessive build-up of DHT is prevented.

Final Thoughts On Low-Level Laser Therapy And Hair Regrowth

The evidence is clear: low-level laser therapy (LLLT) shows promise in slowing, stopping, or even reversing hair loss. With that said, researchers still haven’t uncovered…

LLLT’s exact mechanisms of action
The best wavelength, diode width, session duration, or session frequency for hair regrowth

Low-level laser therapy is also expensive, and if you’re going to spend thousands of dollars, do your homework so you avoid scammy laser products. Either 1) replicate the methodology of human hair regrowth-LLLT studies, or 2) track down someone who’s seen success with LLLT, and then replicate their methodology.

In order to advance low-level laser therapy and its effectiveness for hair recovery, LLLT providers should start sharing their “best practices” with physicians. Doing so will get us closer to uncovering the mechanisms and optimum settings for hair recovery.

One last note: I have no recommendations for (nor am I affiliated with) any LLLT products.

low level light therapy hair

low level light therapy hair

low level light therapy hair

low level light therapy hair

low level light therapy hair

low level light therapy hair

low level light therapy hair

low level light therapy hair

low level light therapy hair

low level light therapy hair

 

 


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