I jumped on this product since DH has been concerned about his thinning hair for years. The timing is good because, If it gets worse, we cant afford hair plugs and him resorting to that seen on TV Spray On Hair would be grounds for me to divorce him. The manufacturer is clear. It will be some time before we know the results, so its been with both hope and skepticism that Ive been watching him use this laser therapy cap. What I absolutely love at this point is the amount of information they provide on the box. Without opening it, you get to read about how it works, WHO IT WILL WORK ON, clinical results, that its FDA Cleared, and what it comes with. DH confirms that it is light-weight, sits easily on the head and is easy to use (put it on, press the button, and six minutes later, an audible and visual shutdown occurs). A bonus is that it works as a preventative to retain hair, so it can be a benefit for men and women. Ive a full head of hair and am wearing the cap too because I like the idea of my hair not thinning as I get older. The question whether DH experiences hair regrowth cannot be answered yet. One claim is that participants showed an average of 51% more hair within seventeen weeks. Based solely on hope, and the convenience of use, DH and I rate it 5 stars.