Red light therapy device.

"Red light therapy devices help to improve the metabolic health of the hair follicle and improve blood flow to the follicle delivering growth factors. It definitely can work and is evidence-based. It's mostly used for androgenetic alopecia but there is evidence that it can help with telogen effluvium. You do need to consider the fact that depending on where you're at in the telogen effluvium phase there's a good chance that it will resolve on its own. It's an upfront investment, and if it's something that is eventually going to go away and then you're left with this device, is that worth it? Probably not. That being said, some women have telogen effluvium and it unmasks an androgenetic alopecia, so if you're in that category then talk to your dermatologist or your doctor about your hair loss process, it might be a good option for you at home. But for run-of-the-mill hair loss, yes it can help for sure, get things back on track maybe a little faster, maybe cut down on the overall extent of shedding. But those things will also taper off in most cases and go away on their own without investing in the device."