I have been gradually getting a larger and larger bald spot on the back of my head for the last 5 years. I have tried Minoxidil, but it is messy and has not worked at all, that I can tell. I wanted to try a laser hat, but did not want to spend $700, only to find it did not work. I found 100 laser diodes for $50 on Amazon, put them in a foam pad with holes, added batteries, and put them in a baseball cap. I have been wearing the hat in the car, each day, during my 30 minute commute. This is supposed to take 6-12 months to work, but I am getting small, but noticeable results in 30 days. I am really excited to see what the next few months bring. Here is a video showing exactly what I did.
Supplies: 100 laser diodes ($5/10 doides on Amazon), 4 inch square of foam flooring, battery pack, switch, cap
Step 1 - Drill or punch 100 equally spaced 1/8" holes in foam.
Step 2 - Unscrew and discard all lenses from lasers
Step 3 - Press lasers into foam holes
Step 4 - Connect all red laser wires to switch. Connect switch red battery wire
Step 5 - Connect all the blue laser wires to the black battery wire.
Step 6 - Lace battery pack to outside back of cap.
Step 7 - Lace, or double-stick tape, foam laser pack to inside of cap, where you need it.
Step 8 - Put hat on your head and wear it for 15-30 minutes a day.
TIP - Get some rechargeable Lithium AA batteries. Regular batteries only last a week.