I have found laser therapy to be helpful. I was also losing my hair due to stress and bought an inexpensive laser. After using the laser for 10-15min/day for about a week I noticed my hair started looking thicker, brighter, and more lifelike. I also had a spot that was looking like it was going toward bald. That started filling in after about a month. So yes laser therapy works, maybe not in every single case but for me, yes. You can find laser brushes on ebay. Just make sure if you get one it is real lasers and not LEDS. LEDS do not penetrate the scalp and hair like lasers do. I have designed my own laser for personal use. You can PM if you have any questions about that. Here are examples of some lasers for hair growth: