I have been using my 9-laser hair comb since September 1, 2018. Three times a week for the prescribed 11-12 minutes each session for 14 months, faithfully. And I am sorry to say that I have lost an additional (approximately) 40-50% of my hair. I have half the amount of hair I had last year before I started using this device. I am NOT saying this device made me lose my hair, but I AM saying this device did nothing to help me retain or regrow ANY NEW hair. I had big hopes, even though my dermatologist did tell me it probably would not work before I started last year. For those individuals that claim this device works, good for you! For me, big disappointment.
Bottom Line: No, I would not recommend this to a friend
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