I have been using igrow for more than a year and while I do not see any improvement I also do not see my hair getting any worse. I believe that the use of the igrow is helping me maintain my my current hair. I only wish that I started using the unit earlier when I had more hair. My only issue is that my ear pads are beginning to wear out. I do not see replacement parts or recommend alternative replacement pads on the igrow site so that I can replace them.
The iGrow® Laser Hair Growth System works via the principle of photo-bio stimulation, a process by which nutrient rich laser energy is delivered to the hair follicle. This process causes a revitalization of the individual follicle, and a general strengthening of the hair. The device uses a total of 51 red and laser lights to emit the maximum amount of energy necessary to stimulate the hair follicles and effectively cause re-growth.
Using the iRestore is quite straight forward. All you have to do is put it on your head, press the power button on the controller and then the start button. The helmet is made of plastic. It has a built-in clap to fit into head of different size. I found the claps are little tight to make it a little uncomfortable.  The laser and LED lights turn on and off for 25 minutes, and you’re done. The controller gives a beep at the end of the session, and the LEDs automatically turn off. It is recommended to use 2-3 times a week. One needs to continue to use the device to keep the results. 
iGrow mimics the same LLLT (Low Level Laser Therapy) technology used by hair clinics around the world to encourage hair to appear thicker, fuller and healthier. The revolutionary iGrow harnesses the energizing and nourishing effects of cold laser technology and LED light to dilate tiny blood vessels and increase the blood supply to the hair follicle. Through the principles of "photobiotherapy" the lights progressively improve the quality, strength and thickness of your hair in an average of 12-16 weeks. More dramatic results can be seen after a 4-6 months. Thousands of men and women worldwide have discovered the power of laser therapy treatments for the improvement in the appearance of their hair.

To be continued: I just bought this and am giving it three stars for now because the directions are incorrect or dated. The directions tell us to use this twice a week at whatever setting desired. I'm not bald so I chose the lighter setting. However, since I had read here (THANK YOU AMAZON FOR REVIEWERS!) that someone said to use it every other day, I called IGrow to ask about the proper use.
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I Grow is a revolutionary safe, effective, in-home hair growth/stimulation device that helps stop the hair loss process and return the thin hair back to a healthier, fuller and thicker state. It is fully portable, easy to use and equites no manual movement. I Grow incorporates Apira Science’s proprietary dual combination of red laser and LED light diodes to effectively stimulate cellular activity causing a reenergizing of the natural function of the hair follicle. This has been proven to reverse the hair loss and thinning process over a 4 to 6 month period. This noninvasive hair rejuvenation device is safe, effective and affordable with no side effects, unlike pharmaceuticals, topical and pills used to treat hair loss. The typical treatment is wearing the laser helmet at least three times a week for an average of 20-25 minutes per session.
Further the manufacturer puts a claim that the product makes the hair of the user to look rather fuller and thicker making them glow and appear much healthier than before. This is attributed to the fact that there is enhanced cellular activity when using this product that makes the air follicles to receive much energy, nutrients and growth hormones for growth within the adipose tissues of the skin.
I’ve seen many doctors and hair loss sufferers alike recommend this product. It’s relatively budget-friendly, currently available for just under $500, and it comes with a 6-month money-back guarantee, as well as a 1-year manufacturer’s warranty. According to two recent, peer-reviewed studies, the iGrow laser increased hair counts by 35% in males and 37% in females.
I completely understand. It does feel different when you’re female though. I think hair is more important to women and more important to the way people feel about a woman. It’s completely acceptable for a guy to be balding, or have a buzz cut, but not so much for a woman. Case in point, I was recently shopping at Walmart and some older guy in a wheelchair made the unsolicited comment that it looked like someone had done a number on my hair. I asked him what he was talking about and he repeated his comment. I replied that I like to keep my hair very short. Then I turned away and he said “looks like a boy’s haircut to me” I just walked away without saying anything because it took me off guard and kind of embarrassed me. Of course 5 seconds later I was just pissed about it, but it was too late to make a witty comeback.

Low Level Laser Therapy (LLLT) has been used for hair rejuvenation for quite some time now. What is LLLT? I will make it pretty simple, I assume you have heard of laser hair removal right? This is essentially the same thing but with the opposite effect. Certain wavelengths of light can be used to remove hair, and others can be used to rejuvenate hair. The practice of exposing cold laser light to your scalp with the goal of bio-stimulation in mind has been proven effective for decades now. So does that mean that this FDA cleared iGrow Laser Helmet is going to be the solution to hair loss problems? Read along and well find out together.
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When you're using this, it's very, very simple. You simply power this on, simply hit this little power button, and then you will touch one of the heads, either male or female. I'm going to go ahead and hit the male, which is going to turn this on for 25 minutes. The lights are illuminated. There is a static beam and there is a pulsing beam going on in this. These are going to provide different levels of stimulation. Additionally, when you're done, it simply turns off, which is a very nice feature of this. It is wired, so obviously you need to be near a power outlet.
On my quest to find if this iGrow Laser Helmet was the solution for me, I came across tons of other reviews of the product. First I searched message boards closely related to the subject and found a bunch of testimonials from people in the same situation I am in. The problem was, it was a really mixed consensus. Being the cynic that I am, I automatically assumed that the reviews that were raving this thing as a miracle product were left by the manufacturer or someone paid to promote the iGrow. That is what made me move to YouTube where I watched this pair of videos.
I started using igrow in Feb 2015. I went to a hair restoration place. I used hair support and eufora thickening system. It took about 5 months to see results. I still getting new hair. I almost have all my hair back. I had a bald spot in the middle and sides of hair.It takes time to see results. It really works.The shampoos I used really speeded up my results. Thanks I grow
I started using igrow in Feb 2015. I went to a hair restoration place. I used hair support and eufora thickening system. It took about 5 months to see results. I still getting new hair. I almost have all my hair back. I had a bald spot in the middle and sides of hair.It takes time to see results. It really works.The shampoos I used really speeded up my results. Thanks I grow
This is one of the most widely recommended laser helmets on the market, with good to excellent reviews. It features 51 medical-grade lasers, lightweight design, and it’s FDA cleared. According to the company’s own 2017 study, 100% of users saw a visible improvement in hair growth after 4 months; 43.23% was the average increase in hair count. Current cost is around $600. 
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